A recent study by College Stat Company reported a nationwide survey

A recent study by College Stat Company reported a nationwide survey of college students determined that students spend 2 hours studying for each hour in the classroom. Professor Baker at State College wants to determine whether the time students spend at her college is significantly different from the national average of 2 hours. A random sample of 20 statistics students resulted in an average of 1.75 hours with a standard deviation of 0.24 hours. A t-test was conducted at the 5% level of significance. The calculated value of t was -4.03. What was Professor Baker decision? 

A.   Reject the alternative hypothesis statement.

B.   Fail to reject the null hypothesis.

C.   Reject the null hypothesis, the test statistic exceeds the critical value.

D.   Cannot make a decision at this time; more data is required.

Solution