Question

A graduate student believed that, on the average, college students spend more time on the Internet compared to the rest of the population. She conducted a study to determine if her hypothesis was correct. The student randomly surveyed 25 students and found that the average amount of time spent on the Internet was 11.75 hours per week with a SD = 1.5 hours. The last census found that, on the average, people spent 11 hour per week on the Internet.

a. What does the null hypothesis predict for the problem described above. (Be sure to use the variables given in the description.)

b. Conduct a statistical test of the null hypothesis using p = .05.

c. Provide an interpretation of your statistical conclusion to part B.

d. What type of statistical error might you have made in part C.

e. Obtain the 95% confidence interval for the sample statistic.

f. Provide an interpretation for the interval obtained in part E.

Answer 1