An article in the San Jose Mercury News stated that students

An article in the San Jose Mercury News stated that students in the California state university system take 4.5 years, on average, to finish their undergraduate degrees.

Suppose you believe that the mean time is longer. You conduct a survey of 49 students and obtain a sample mean of 5.1 with a sample standard deviation of 1.2 and perform a hypothesis test at a 1% significance level?

Pvalue approach

What is the Pvalue Decision Rule?

a.     The data supports the alternate hypothesis if the Pvalue is greater than the significant level of the test.

b.     The data supports the alternate hypothesis if the Pvalue is less than the significant level of the test.

c.     The Pvalue must equal the significant level of the test for the decision of the hypothesis test to be alternate.

d.     The Pvalue must not be equal the significant level of the test for the decision of the hypothesis test to be alternate.

Select the correct answer and enter the appropriate letter.

What is the Pvalue for this hypothesis test?

Enter answer as a percent rounded to 0 decimal places without the percent sign or as a decimal rounded to 2 decimal places.

What is your decision based upon performing the hypothesis test?

a.     There is insufficient evidence, based upon the data, to accept the alternate hypothesis.

b.     There is sufficient evidence, based upon the data, to accept the alternate hypothesis.

c.     It is not possible to make a decision (null or alternate), based upon the data obtained in performing this hypothesis test.

d.     A strong argument can be made for either decision, null or alternate hypothesis, based upon the data obtained in performing this hypothesis test.

Select and enter the appropriate letter.

Solution