In a Hopkins study of an cancer drug 108 of the 200 subjects

In a Hopkins study of an cancer drug, 108 of the 200 subjects reported experiencing significant relief from their symptoms. Test the claim that more than half of all those using the drug experience relief.

a) What is the z-score or z-stat?

b) What is the probability value (p-value)?

c) Which statement best describes the results of your hypothesis test?

The sample data suggest that the proportion that experience relief is greater than 0.50.

2) The sample data suggest that the proportion that experience relief is not greater than 0.54.

3) The sample data suggest that the proportion that experience relief is greater than 0.54.

4) The sample data suggest that the proportion that experience relief is not greater than 0.50.

d) What are the null and alternative hypotheses?

e) Using a 0.01 significance level, what is your decision?

Solution

p=108/200=0.54; P=0.5

SE=0.035355

Z=(p-P)/SE =1.131371

P-value = 0.12895

C) Answer choice is 4

d)Answer choice 1

e) Retain Null hypothesis