You calculate a point biserial correlation, and the correlation is significant. Based on this information:Was the t-test for mean differences significant?
Answers
A significant point biserial correlation does not directly indicate whether the t-test for mean differences is significant or not.
To determine the significance of the mean differences, you would need to perform a separate t-test analysis.
Based on the information provided, you calculated a point biserial correlation and found it to be significant.
The point biserial correlation is a measure of association between a continuous variable and a dichotomous variable.
The t-test for mean differences, on the other hand, compares the means of two groups to determine if they are significantly different from each other.
Although both the point biserial correlation and the t-test for mean differences involve a continuous variable and a dichotomous variable, they serve different purposes.
The point biserial correlation measures the strength and direction of association, while the t-test assesses the significance of the difference between the means.
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Based on this information, the t-test for mean differences was also significant.
Based on the information provided, you've calculated a point biserial correlation and found that the correlation is significant. To determine if the t-test for mean differences was significant, follow these steps:
1. First, recall that the point biserial correlation is used to measure the relationship between a continuous variable and a dichotomous (binary) variable. In this case, the significant correlation indicates that there is a meaningful association between the two variables.
2. Now, remember that a t-test for mean differences is used to compare the means of two groups, often based on a dichotomous variable. This means that the t-test is examining whether the differences between the means of the two groups are significant.
3. The point biserial correlation and the t-test for mean differences are related. Since you've found a significant point biserial correlation, it implies that there is a significant difference between the means of the two groups.
4. Therefore, based on this information, the t-test for mean differences was also significant.
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Related Questions
If y varies directly as x and y= 64 when x=4 find x when y=48
Answers
Answer:
If y varies directly as x and y= 64 when x=4 find x when y=48
x=3
What is the area of the following circle with a radius of 4
Answers
Answer:
50.24
Step-by-step explanation:
4*4*3.14=16*3.14=50.24
Answer:
50.265
Step-by-step explanation:
Formula : A=
\( \pi 4 { }^{2} \)
(x-3)^2/9+(y-6)^2/16=1 the endpoints of the major axis are
Answers
The endpoints of the major axis of the ellipse ((x-3)^2)/9+(y-6)^2/16=1 are (3,6) and (3,2).
In the given equation, we can see that the x-term is squared and has a denominator of 9, while the y-term is squared and has a denominator of 16. This indicates that the major axis is aligned with the y-axis since the denominator of the y-term (16) is larger than the denominator of the x-term (9), making the y-axis the major axis.
To find the length of the major axis, we need to identify the square root of the larger denominator in the equation. In this case, the square root of 16 is 4. This means that the length of the major axis is 2 times the square root of 16, which is 2 times 4, resulting in a length of 8 units.
To determine the endpoints of the major axis, we look at the center of the ellipse. In the equation, the center is represented as (3, 6), which means that the ellipse is centered at the point (3, 6). Since the major axis is aligned with the y-axis, the endpoints of the major axis will have the same x-coordinate as the center (3) and will differ in their y-coordinates.
To calculate the y-coordinates of the endpoints, we add and subtract half the length of the major axis from the y-coordinate of the center (6). Half the length of the major axis is 8/2 = 4, so we add and subtract 4 from the y-coordinate of the center. This gives us the endpoints of the major axis as (3, 6 + 4) = (3, 10) and (3, 6 - 4) = (3, 2).
Therefore, the endpoints of the major axis are (3, 10) and (3, 2).
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Algebra Find the value of x.
Answers
Answer:
8 :)
Step-by-step explanation:
Side 1: 15
Side 2: 14
Side 3: 7 + x
Side 1 and 3 are the same length so we subtract :D
15 - 7 = 8
Have an amazing day!!
Please rate and mark brainliest!!
Describe the slope of the line
(please answer m=) aswell.
Answers
M would be 0 because the slope is 0
Explanation
The slope of a line is change in Y / change in X. The slope of a horizontal line = 0
Every day, the Webster Pet Store uses 3/10 of a bag of dog food to feed the dogs. How many days will 1 4/5 bags of dog food last?
Answers
Answer:
6 days
Step-by-step explanation:
1 + 4/5 = 5/5 + 4/5 = 9/5 = 18/10 bags of dog food
18/10 ÷ 3/10 = 18/3 = 6 days
Over which interval is the graph of the parent absolute value function decreasing?
(–[infinity], [infinity])
(–[infinity], 0)
(–6, 0)
(0, [infinity])
Answers
The graph of the parent absolute value function is decreasing over the interval (-∞, 0). The function exhibits a decreasing behavior as x moves from negative infinity towards zero, where the absolute value decreases.
The parent absolute value function is defined as f(x) = |x|. To determine where the graph of this function is decreasing, we need to identify the intervals where the function's slope is negative.
Let's analyze the behavior of the parent absolute value function:
For x < 0, the function can be rewritten as f(x) = -x. In this interval, the function is a linear function with a negative slope of -1. As x decreases, f(x) also decreases, indicating a decreasing behavior.
For x > 0, the function remains f(x) = x. In this interval, the function is a linear function with a positive slope of 1. As x increases, f(x) also increases, indicating an increasing behavior.
At x = 0, the function is not differentiable since the slope changes abruptly from negative to positive. However, it is worth noting that the function does not strictly decrease or increase at x = 0.
Therefore, we can conclude that the graph of the parent absolute value function is decreasing over the interval (-∞, 0).
In this interval, as x moves from negative infinity towards zero, the function values decrease. The farther away x is from zero (in the negative direction), the larger the absolute value, resulting in a decrease in the function values.
On the other hand, the graph of the parent absolute value function is increasing over the interval (0, ∞), as explained earlier.
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Which statements are true? Check all that apply. The square root of a positive number greater than 1 is less than the number. O The square root of a positive number is always less than half of the number itself. The square root of a positive number less than 1 is less than the number. O The square root of a perfect square is not a whole number. U2 The square root of a positive number less than 1 is between 0 and 1 Nans this and met Save and Exit
Answers
Answer:
The square root of a positive number greater than 1 is less than the number. TRUE
The square root of a positive number is always less than half of the number itself. FALSE
The square root of a positive number less than 1 is less than the number. FALSE
The square root of a perfect square INTEGER is AN INTEGER; the square root of a perfect square such as one fourth is one half, not a whole number. THIS QUESTION NEEDED QUALIFICATION OF "number"
The square root of a positive number less than 1 is between 0 and 1. TRUE
Solve -72 = 8 (y - 3) pls
Answers
Step-by-step explanation:
Given
- 72 = 8 ( y - 3 )
or - 72 / 8 = y - 3
or, - 9 = y - 3
y = - 9 + 3
Therefore X = - 6
Hope it will help :)❤
Answer:
Step-by-step explanation:
-72=8y-24
-72+24=8y
-48=8y
-48/8=y
-6=y
Find the measure of side b.
On a right triangle on the hypotenuse c = 240in and on the left side of the right angle is 39 degrees.
Answers
Use the point (h,k) to help you write a possible equation for the graph below
Answers
By using the vertex of the quadratic equation, we will get the equation:
y = -2*(x + 6)^2
How to write the quadratic equation?For a quadratic equation with a leading coefficient "A" and a vertex (h, k), the equation can be written as:
y = A*(x - h)^2 + k
Here we can see that the vertex is (-6, 0), so we have:
y = A*(x + 6)^2
We also can see that the parabola passes through the point (-4, -8), replacing these values above we will get:
-8 = A*(-4 + 6)^2
-8 = A*(2)^2
-8 = 4A
-8/4 = A
-2 = A
Then the quadratic equation is:
y = -2*(x + 6)^2
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the scale on a map is 1:10 000
a) two towns are 17km apart
how far apart would the be on the map?
give your answers in centimeters.
b) the viewpoint and the pier are 7.1cm apart on the map.
how far apart would they be in real life?
give your answers in kilometers.
Answers
Find the value of the expression:
4^3·25^3
Answers
Please answer the question in the photo! ( will mark brainliest )
Answers
The required fill in the blanks is 110° and 360°.
What is angle?In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle and corner whether constituting a projecting part or a partially enclosed space.
Given:
The figure shows that to find the angle.
According to given question we have
The first answer of the figure is 110°.
Obtuse angle is more than 90° and less than 180°.
The second answer of the figure is 360°.
A full angle, also called a complete angle, round angle, or perigon, is an angle equal to radians.
Therefore, the required fill in the blanks is 110° and 360°.
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Help 50 PTS
Compare the mean of the prices of Felix's books and of Tyler's books. What do the differences in the means tell you about the prices of the two sets of books?
Felix Mean: 10.21
Tyler Mean: 77.36
Answers
Answer:
It tells you 2 different things
Step-by-step explanation:
1. It could tell you that Tyler's book is much more expensive than Felix's.
2. It could tell you that they're the same price but Tyler sold more.
Answer:
The means are very different, so almost all of Tyler's books are more expensive than Felix's books.
Step-by-step explanation:
used this for my test and it was correct.
Emma bought 17 packages of rolls for a party. There were 18 rolls in a package. After the party there were 8 rolls left over. How many roles were Eaten
Answers
Answer:
298 rolls
Step-by-step explanation:
As per the above, we were given that Emma bought 17 packages of rolls.
We need to find the number of rolls in the packages that he bought, hence
Total rolls = 17 packages × 18 rolls per package
= 306 rolls
Furthermore, since we have 8 rolls leftover, then total number of rolls eaten would be;
Rolls eaten = Total number of rolls in the beginning - rolls leftover
= 306 - 8
= 298 rolls
It therefore means that 298 rolls were eaten by Emma.
Colton was given a box of assorted chocolates for his birthday. Each night, Colton treated himself to some chocolates. There were originally 30 chocolates in the box and Colton ate 2 chocolates each night. Write an equation for C,C, in terms of t,t, representing the number of chocolates remaining in the box tt days after Colton's birthday.
Answers
Given:
Initial number of chocolates in the box = 30
Colton ate 2 chocolates each night.
To find:
The equation for the number of chocolates remaining in the box t days after Colton's birthday.
Solution:
Let C be the chocolates remaining in the box and t is number of days after Colton's birthday.
Colton ate 2 chocolates each night. It means, the remaining number of chocolates decreased by 2 per day.
Initial number of chocolates in the box is 30 and it decreased by 2 per day. So, the equation for remaining chocolates is
\(C=30-2t\)
Therefore, the required equation is \(C=30-2t\).
Answer:
What the other person said.
:D
Step-by-step explanation:
how to determine if a binomial is a factor of a polynomial
Answers
A binomial is a factor of a polynomial has been determined by using the
polynomial division method.
To determine if a binomial is a factor of a polynomial, you can use the polynomial division method. The basic idea is to divide the polynomial by the binomial and check if the remainder is zero. If the remainder is zero, then the binomial is a factor of the polynomial. Here's the step-by-step process:
Write the polynomial and the binomial in standard form, with the terms arranged in descending order of their exponents.
Perform the long division of the polynomial by the binomial, similar to how you would divide numbers. Start by dividing the highest degree term of the polynomial by the highest degree term of the binomial.
Multiply the binomial by the quotient obtained from the division and subtract the result from the polynomial.
Repeat the division process with the new polynomial obtained from the subtraction step.
Continue dividing until you reach a point where the degree of the polynomial is lower than the degree of the binomial.
If the remainder is zero, then the binomial is a factor of the polynomial. If the remainder is non-zero, then the binomial is not a factor.
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Misha’s group was asked to write an expression equivalent to 7 y squared z + 3 y z squared minus 3. When Mr. Chen checked their answers, he found only one to be correct. Who had the correct answer?
Answers
Answer:Helena
Step-by-step explanation:
Answer: d
Step-by-step explanation:
there is a strong negative correlation between smoking while pregnant and the birth weight of the baby. this means that
Answers
Smoking causes babies to weigh less at the time of their birth, and the more a pregnant lady smokes, the less will be the birth weight of the babies.
Given that,
We have to fill the blank smoking during pregnancy has a significant negative impact on the baby's birth weight. That is to say_______.
We know that,
Tobacco smoking introduces the drug nicotine into the blood stream of the individuals.
When any individual is adapted for the tobacco smoking, the drug gets dissolved into the blood stream and leads to many problems like asthma, heart diseases, sinus, also the risk of cancer gets developed.
However, when a pregnant women smokes, the concentration of the nicotine and the carbon monoxide increases in the blood stream of the mother. The nicotine and hence the carbon monoxide diffuses the placenta and hence the umbilical cord and likewise reaches the developing fetus.
As a result of which sufficient amount of oxygen and other nutrients do not reach the fetus and likewise the fetus gets negatively impacted due to cigarette smoking. Thus due to this the fetus might be affected with a number of complications like;
Low birth weight of the fetus
Child may be born with some congenital defects in the lungs or any body part
Babies may be born with a poor and low intelligence
Premature birth or still birth may also be associated with the cigarette smoking.
Therefore, Smoking causes babies to weigh less at the time of their birth, and the more a pregnant lady smokes, the less will be the birth weight of the babies.
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1) Using the image to the right, which of the following pairs of lines are parallel? A. a||b B. c||d C. a||d D. a||c HELP PLEASE
Answers
Answer:
C
Step-by-step explanation:
Answer:
c 100 percent
Step-by-step explanation:
Prove
\(\small \dfrac{ \sin(A) - \cos(A) + 1}{\sin(A) + \cos(A) - 1} = \dfrac{\cos(A)}{1 - \sin(A) } \)
Help!!!!!!!!!
Answers
\( \frac{ \sin(a) - \cos(a) + 1 }{ \sin(a) + \cos(a) - 1 } = \\ \)
____________________________________________
\( \frac{ \sin(a) - \cos(a) + 1 }{ \sin(a) + \cos(a) - 1 } \times \frac{ \sin(a) + \cos(a) + 1}{ \sin(a) + \cos(a) + 1 } = \)
\( \frac{ {sin}^{2}(a) + 2 \sin(a) - {cos}^{2} (a) + 1 }{ {sin}^{2}(a) + 2 \sin(a) \cos(a) + {cos}^{2}(a) - 1 } = \)
_____________________________________________
As you know :
\( {sin}^{2} (a) + {cos}^{2} (a) = 1\)
_____________________________________________
\( \frac{ {sin}^{2} (a) - {cos}^{2}(a) + 2 \sin(a) + 1}{ {sin}^{2} (a) + {cos}^{2}(a) - 1 + 2 \sin(a) \cos(a) } = \)
\( \frac{ {sin}^{2}(a) - (1 - {sin}^{2}(a)) + 2 \sin(a) + 1 }{1 - 1 + 2 \sin(a) \cos(a) } = \)
\( \frac{ {sin}^{2} (a) + {sin}^{2} (a) - 1 + 1 + 2 \sin(a) }{2 \sin(a) \cos(a) } = \)
\( \frac{2 {sin}^{2}(a) + 2 \sin(a) }{2 \sin(a) \cos(a) } = \)
\( \frac{2 \sin(a)( \sin(a) + 1) }{2 \sin(a)( \cos(a) \: ) } = \\ \)
\( \frac{ \sin(a) + 1}{ \cos(a) } \\ \)
And we're done...
Take care ♡♡♡♡♡
Determine the relationship between the two triangles and whether or not they ca
proven to be
can be
congruent.
Answers
Answer:
They are congruent.
Step-by-step explanation:
The have the same side length, as shown by the marking on the side next to the double marked angle and across from single marked angle. They have the same angle measures located in the same places as well. They are congruent as proven by shape, angle measures, and side length.
in a study, the content of caffeine in brewed coffee was determined. the values for 6 trials were 381 mg/l, 405 mg/l, 399 mg/l, 402 mg/l, 395 mg/l, and 404 mg/l. for a confidence level of 99%, what is the value of t?
Answers
The value of t for a confidence level of 99% and 5 degrees of freedom is 4.032.
The confidence interval is calculated based on the sample mean, the sample standard deviation, the sample size, and the chosen confidence level.
Given the values of caffeine content in 6 trials: 381 mg/l, 405 mg/l, 399 mg/l, 402 mg/l, 395 mg/l, and 404 mg/l.
Sample mean = (381 + 405 + 399 + 402 + 395 + 404) / 6 = 396 mg/l
Sample standard deviation = √([(381-396)² + (405-396)²+ (399-396)² + (402-396)² + (395-396)² + (404-396)²] / (6-1)) = 9.29 mg/l
To calculate the value of t for a confidence level of 99%, we need to look up the t-distribution table with degrees of freedom (df) = n-1 = 5 and the chosen significance level (α) = 0.01 (since we want to calculate the 99% confidence interval, which leaves 1% of the distribution in the tails).
Looking up the t-value from the table, we find that t = 4.032.
Therefore, the value of t for a confidence level of 99% and 5 degrees of freedom is 4.032.
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Solve:
2(x - 3) + (x + 3) = 6x
Answers
Answer: x=−1
Step-by-step explanation: Hope this help :D
Answer:
x=-1
Step-by-step explanation:
I’m not sure I need help
Answers
Answer:
D) \(1 < x\leq 4\)
Step-by-step explanation:
1 is not included, but 4 is included, so we can say \(1 < x\leq 4\)
find the value of m n (4x-33) (3x+30)
Answers
Answer: 4(x + y) = 4x + 4y 2(3x + 4) = 2(3x) + 2(4) = 6x + 8
Step-by-step explanation:
help me please 20 points
Answers
Answer:
47 inches
Step-by-step explanation:
12 + 10 + 16 + 9 = 47
hope this helps you :)
perimeter means all the sides added up together.
Which graph best represents y=−2x+3
Answers
Answer:
download graphing calc, it'll help u sm
Step-by-step explanation:
° • .°• ✯
★ * ° °·
. • ° ★ • ☄
▁▂▃▄▅▆▇▇▆▅▄▃▁▂
what is the quotient of y and 11
Answers
Answer:
y ÷ 6 = 11
pls give me brainliest