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 0.474. You want to see if the new drug is more effective than the previous drug. You conduct a sample of 112 patients on the new drug and find that 76 have had a positive treatment effect. The 90% confidence interval is ( 0.606 , 0.7512 ). What is the best conclusion you can make of those listed below?

Question 6 options:

1)

The proportion of patients on the new drug who saw a positive treatment effect from 0.474 is 90%.

2)

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

3)

We can conclude that the proportion of patients who see a positive treatment effect with the new drug is smaller than 0.474.

4)

We can conclude that the proportion of patients who see a positive treatment effect with the new drug is larger than 0.474.

5)

We can not claim that the proportion of patients who see a positive treatment effect with the new drug differs from 0.474.