25
QuizMultiple Choice
Unit Test — Unit test
Question 25 • SC-Statistical Modeling SDPC
A headache medication is supposed to contain 500 mg of active ingredient. A researcher would like to test the hypotheses =500 versus 500 where μ = the true amount of active ingredient for all pills. A 99% confidence interval based on a random sample of 60 pills is (505, 511). Based on the interval, what decision should be made at α = 0.01?
Answer
A
The researcher should reject the null hypothesis because 500 falls inside the 99% confidence interval.B
The researcher should reject the null hypothesis because 500 falls outside the 99% confidence interval.C
The researcher should fail to reject the null hypothesis because 500 falls inside the 99% confidence interval.D
The researcher should fail to reject the null hypothesis because 500 falls outside the 99% confidence interval.