Answer to Question #340493 in Statistics and Probability for John Paulo V. Bang

Question

Researchers wish to test the effectiveness of a certain drug in lowering the cholesterol levels in individuals aged 50-60 years old. The mean cholesterol levels in previous researches for this age group is 250 mg/dL. The normal range is 200-239 mg/dL. 50 participants were invited to the study, The mean cholesterol levels for the participants after a month of taking the medication is 237 mg/dL with a standard deviation of 4 mg/dL. Assuming a normal distribution of times of labor, test at the 10% level of significance test whether the mean cholesterol level is less than 250 mg/dL.

Answer 1

It's been a while since this question is posted here. Still, the answer hasn't been got. Consider converting this question to a fully qualified assignment, and we will try to assist. Please click the link below to proceed: Submit order