c. Would you reject the null hypothesis? (circle one) YES NO f. Would you conclude that there
was a significant difference between the population mean for the time to solve the problem and
the mean of your sample? (circle one) YES NO g. Imagine you write this for a scientific journal.
Fill in the blanks: \[ \text { f }=\text { _ } p .05, \text { two-tailed. } \] h. What is the effect size
(using the estimated d) for this example? Show your work. i. How would you characterize
(evaluate) this effect size? j. If you decided to use a one-tailed test, what is the directional null
hypothesis in symbols? k. If you decided to use a one-tailed test, what is the directional
alternative hypothesis in symbols?
2. ( 14 points) Imagine there is a math problem that has been given to many college students
across the country and the nationwide mean time to solve the problem is 110 seconds. You take a
random sample of 27 students who been through a math skills workshop (to train them to solve
math problems quickly) and give them this problem to solve. You believe that these students will
be able to solve the problem more quickly than the national average. a. What is the
nondirectional null hypothesis in symbols? I have started it for you.
H0:mathsilsworkhopstsictis=110 b. What is the nondirectional alternative hypothesis in
symbols? I have started it for you. H1:mathsillsworksbopstudents110 c. With a two-tailed t-test
with an alpha level of .05 , and a sample of n=27, what are the degrees of freedom and the
critical value of t ? Degrees of freedom =271=26 Critical value of t=2.056 d. When you test the
sample of 27 students, you find that the mean time to solve the problem is 102.1 seconds and the
standard deviation is 15.89. Calculate the value of t. SHOW YOUR WORK..
c. Would you reject the null hypothesis (circle one) YES NO f. Would.pdf
1. c. Would you reject the null hypothesis? (circle one) YES NO f. Would you conclude that there
was a significant difference between the population mean for the time to solve the problem and
the mean of your sample? (circle one) YES NO g. Imagine you write this for a scientific journal.
Fill in the blanks: [ text { f }=text { _ } p .05, text { two-tailed. } ] h. What is the effect size
(using the estimated d) for this example? Show your work. i. How would you characterize
(evaluate) this effect size? j. If you decided to use a one-tailed test, what is the directional null
hypothesis in symbols? k. If you decided to use a one-tailed test, what is the directional
alternative hypothesis in symbols?
2. ( 14 points) Imagine there is a math problem that has been given to many college students
across the country and the nationwide mean time to solve the problem is 110 seconds. You take a
random sample of 27 students who been through a math skills workshop (to train them to solve
math problems quickly) and give them this problem to solve. You believe that these students will
be able to solve the problem more quickly than the national average. a. What is the
nondirectional null hypothesis in symbols? I have started it for you.
H0:mathsilsworkhopstsictis=110 b. What is the nondirectional alternative hypothesis in
symbols? I have started it for you. H1:mathsillsworksbopstudents110 c. With a two-tailed t-test
with an alpha level of .05 , and a sample of n=27, what are the degrees of freedom and the
critical value of t ? Degrees of freedom =271=26 Critical value of t=2.056 d. When you test the
sample of 27 students, you find that the mean time to solve the problem is 102.1 seconds and the
standard deviation is 15.89. Calculate the value of t. SHOW YOUR WORK.
![c. Would you reject the null hypothesis? (circle one) YES NO f. Would you conclude that there
was a significant difference between the population mean for the time to solve the problem and
the mean of your sample? (circle one) YES NO g. Imagine you write this for a scientific journal.
Fill in the blanks: [ text { f }=text { _ } p .05, text { two-tailed. } ] h. What is the effect size
(using the estimated d) for this example? Show your work. i. How would you characterize
(evaluate) this effect size? j. If you decided to use a one-tailed test, what is the directional null
hypothesis in symbols? k. If you decided to use a one-tailed test, what is the directional
alternative hypothesis in symbols?
2. ( 14 points) Imagine there is a math problem that has been given to many college students
across the country and the nationwide mean time to solve the problem is 110 seconds. You take a
random sample of 27 students who been through a math skills workshop (to train them to solve
math problems quickly) and give them this problem to solve. You believe that these students will
be able to solve the problem more quickly than the national average. a. What is the
nondirectional null hypothesis in symbols? I have started it for you.
H0:mathsilsworkhopstsictis=110 b. What is the nondirectional alternative hypothesis in
symbols? I have started it for you. H1:mathsillsworksbopstudents110 c. With a two-tailed t-test
with an alpha level of .05 , and a sample of n=27, what are the degrees of freedom and the
critical value of t ? Degrees of freedom =271=26 Critical value of t=2.056 d. When you test the
sample of 27 students, you find that the mean time to solve the problem is 102.1 seconds and the
standard deviation is 15.89. Calculate the value of t. SHOW YOUR WORK.](https://image.slidesharecdn.com/c-230328163236-fac7a980/85/c-Would-you-reject-the-null-hypothesis-circle-one-YES-NO-f-Would-pdf-1-320.jpg)
