Question

Refer to the claim below and find the value of the test statistic.

​Claim: Most adults do not have hypertension. When

977

randomly selected adults were​ tested, it was found that

73.5%

of them do not have hypertension.

The value of the test statistic is

---.

Answer 1

here claim is Most adults do not have hypertension.

the null and alternative hypothesis is

Ho:p =0.5

Ha:p > 0.5

using excel>addin>phstat>one sample test

we have

Z Test of Hypothesis for the Proportion
Data
Null Hypothesis            p =	0.5
Level of Significance	0.05
Number of Items of Interest	718.095
Sample Size	977
Intermediate Calculations
Sample Proportion	0.735
Standard Error	0.0160
Z Test Statistic	14.6908
Upper-Tail Test
Upper Critical Value	1.6449
p-Value	0.0000
Reject the null hypothesis

The value of the test statistic is 14.6908