For each problem, compute the appropriate statistical test and report your conclusion. Your answer should include the following: a. Identify the appropriate statistical test. b. State the null hypothesis. c. Calculate the appropriate test statistic. Make sure to report the degrees of freedom for the statistical test (if appropriate). You must show your work to receive full credit. d. State your conclusions (use a two-tailed test with = .05 for all tests). e. Compute an effect size. 1. Professor Morgan would like to determine if the academic preparation of first-year students in her class is different from that of the population. She knows that the population mean on the ACT is 20 ( = 20). Her class of 14 students has an average ACT score of 24 with a standard deviation of 5. Do the ACT scores significantly differ from the population
For each problem, compute the appropriate statistical test and report your conclusion. Your answer should include the following:
a. Identify the appropriate statistical test.
b. State the null hypothesis.
c. Calculate the appropriate test statistic. Make sure to report the degrees of freedom for the statistical test (if appropriate). You must show your work to receive full credit.
d. State your conclusions (use a two-tailed test with = .05 for all tests).
e. Compute an effect size.
1. Professor Morgan would like to determine if the academic preparation of first-year students in her class is different from that of the population. She knows that the population mean on the ACT is 20 ( = 20). Her class of 14 students has an average ACT score of 24 with a standard deviation of 5. Do the ACT scores significantly differ from the population?
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