1. A class survey in a large class for first-year college students asked, "About how many hours do you study during a typical week?" The mean response of the 463 students was 15.3 and the standard deviation was 8.5. Regard these students as an SRS from the population of all undergraduate students at this university. Does the study give good evidence that students claim to study more than 15 hours per week on average?

a. Define the parameter

b. State the Hypotheses

c. Give the sample statistic (give value and proper notation)

d. Are the conditions for the appropriate analysis met? Explain.

e. Compute the appropriate test statistic (show work).

f. How many degrees of freedom does the test statistic have? __________________________

g. Find the p-value using StatKey.

h. Based on your p-value, what do you conclude? Use = 0.01

i. Construct a 99% confidence interval for the mean claimed study time by students at this university. Write a sentence interpreting your confidence interval.

The link for StatKey is http://www.lock5stat.com/