According to a past survey, 23% of americans have hypertension. after a stringent regimen of diet and exercise, 75 people were then tested and 18 were found to have hypertension. based on this sample, does diet and exercise reduce hypertension? use a significance level of 0.05.a) yesb) no

No, Diet and exercise does not reduce hypertension.

Step-by-step explanation:

Since we have given that

p = 0.23

n = 75

x = 18

So,

So, hypothesis would be

So, the test statistic value would be

At α = 0.05 level of significance, we get

critical value = 1.96

and 1.96>0.204.

so, we will accept the null hypothesis.

Hence, No, Diet and exercise does not reduce hypertension.

question

what is the value of the third quartile of the data set represented by this box plot? a. 19 b. 21 c. 26 d. 29

answer

c

26

step-by-step explanation: