Before being released to market, a drug company tests a new allergy medication for potential side effects.A random sample of 160 individuals with allergies was selected for the study.
The new allergy medication was randomly assigned to 80 of them, and another popular allergy medication already on the market (Brand C ) was assigned to the rest.Out of the 80 given the new allergy medication, 14 reported drowsiness; 22 of the 80 taking Brand C reported drowsiness.The 95% confidence interval for the difference in proportions reporting drowsiness is -0.028 to 0.228.Which of the following is correct?
A)We are 95% confident that there is no difference between the proportions of patients reporting drowsiness for the two allergy medications.
B)We are 95% confident that there is a difference between the proportions of patients reporting drowsiness for the two allergy medications.
C)We are 95% confident that the proportion of patients reporting drowsiness is higher for the new allergy medication.
D)We are 95% confident that the proportion of patients reporting drowsiness is lower for the new allergy medication.
E)There will be a significant difference between the proportions 95% of the time.

Question

Quizplus · Accepted Answer

The 95% confidence interval for the difference in proportions includes 0 (-0.028 to 0.228), indicating that we cannot be confident that there is a significant difference between the two medications in terms of the proportion of patients reporting drowsiness.

Before Being Released to Market, a Drug Company Tests a New