Question

Use the traditional method of hypothesis testing to test the given claim about the means of two populations. Assume that two dependent samples have been randomly selected from normally distributed populations. 8) A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The results are given below. At the 0.05 significance level, test the claim that the mean score is not affected by the course. Before 74 83 75 88 84 63 93 84 91 77 After 73 77 70 77 74 67 95 83 84 75 a) State the hypothesis? b)What are your critical value(s)? c) What is your test statistics? d) What is the conclusion with respect to the null hypothesis? e)What is the conclusion with respect to the claim? f) Construct a 95% confidence inteval for the mean difference between before and after.

          Use the traditional method of hypothesis testing to test the given claim about the means of two populations. Assume that two dependent samples have been randomly selected from normally distributed populations.
8) A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The results are given below. At the 0.05 significance level, test the claim that the mean score is not affected by the course.
Before 74 83 75 88 84 63 93 84 91 77
After 73 77 70 77 74 67 95 83 84 75
a) State the hypothesis?
b)What are your critical value(s)?
c) What is your test statistics?
d) What is the conclusion with respect to the null hypothesis?
e)What is the conclusion with respect to the claim?
f) Construct a 95% confidence inteval for the mean difference between before and after.

Use the traditional method of hypothesis testing to test the given claim about the means of two populations. Assume that two dependent samples have been randomly selected from normally distributed populations.
8) A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The results are given below. At the 0.05 significance level, test the claim that the mean score is not affected by the course.
Before 74 83 75 88 84 63 93 84 91 77
After 73 77 70 77 74 67 95 83 84 75
a) State the hypothesis?
b)What are your critical value(s)?
c) What is your test statistics?
d) What is the conclusion with respect to the null hypothesis?
e)What is the conclusion with respect to the claim?
f) Construct a 95% confidence inteval for the mean difference between before and after.

Added by Josefina R.

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