14 14 8 points 1 pt each Consider the following TI84 display

14

14. (8 points -1 pt each) Consider the following TI-84 display of a hypothesis test and answer the questions that follow. A) What are the null and alternate hypotheses? Use correct symbols to give your answer: 8) What kind of test is conducted here? Circle one Left-tailed Right tailed Two-tailed C) What is the sample size? D) What is the value of the test statistic? E) What is the P-value? P) Should you reject the null hypothesis at the 0.05 level? G) Should you reject the null hypothesis at the 0.01 level?

Solution

A)

H0: p =0

H1: p > 0.59

B)

Right tailed

C)

sample size, n = 280

D)

value of test statistics, z = 1.676803364

E)

p-value = 0.0467904451

F)

Should reject null hypothesis at the 0.05 level since p value is less than 0.05

G)

Should not reject null hypothesis at the 0.01 level since p value is more than 0.01