The nicotine content in cigarettes of a certain brand is normally distributed, w

Question

The nicotine content in cigarettes of a certain brand is normally distributed, with mean (in milligrams) u and standar deviation of 0.1. The brand advertises that the mean nicotine content of its cigarettes is 1.5, but you are suspicious and plan to investigate the advertised claim by testing the hypotheses

Ho: u=1.5, Ha: u>1.5

at the 5% significance level. You will do so by measuring the nicotine content of 100 randomly selected cigaretted of this brand and computing the mean nicotine content of your measurements. The power of your test at u=1.6 is:

a) 0.7995

b) 0.8413

c) 0.95

d) greater than 0.999

Explanation / Answer

d) greater than 0.999 This is the Correct answer for sure

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