Test the claim that the population of sophomore college students has a mean grade point average greater than2.2

2.2. Sample statistics include=150

n=150,x=2.38, and=0.5 Use a significance level of=0.03

The test statistic is-

The critical value is-

The P-Value is-

Test the claim that for the population of statistics final exams, the mean score is72

72using alternative hypothesis that the mean score is different from72. Sample statistics include=17, x=73,and=10.

Use a significance level of=0.01. (Assume normally distributed population.)

The test statistic is-

The positive critical value is-

The negative critical value is-