You work for a pharmaceutical company that is testing a new

You work for a pharmaceutical company that is testing a new cholesterol drug. The proportion of patients on the previous drug who had a positive treatment was 0.353. You want to see if the new drug is more effective than the previous drug. You conduct a sample of 117 patients on the new drug and find that 58 have had a positive treatment effect. The 95% confidence interval is ( 0.4051 , 0.5863 ). What is the best conclusion you can make of those listed below?

a) The proportion of patients on the new drug who saw a positive treatment effect from 0.353 is 95%.

b) We can conclude that the proportion of patients who see a positive treatment effect with the new drug is smaller than 0.353.

c) We can not conclude that the proportion of patients who see a positive treatment effect with the new drug differs from 0.353.

d) The confidence interval does not provide enough information to form a conclusion.

e) We can claim that the proportion of patients who see a positive treatment effect with the new drug is larger than 0.353.

Solution

Test conducted to see if the new drug is more effective than the previous drug

e) We can claim that the proportion of patients who see a positive treatment effect with the new drug is larger than 0.353.