Explain power and sample size. Two studies are identical in all respects except for the sample sizes. Consider the power versus a particular sample size. Will the study with the larger sample size have more power or less power than the one with the smaller sample size? Explain your answer in terms that could be understood by someone with very little knowledge of statistics.

6.100 Power versus a different alternative. The power for a two-sided test of the null hypothesis μ = 0 versus the alternative

μ = 10 is 0.82. What is the power versus the alternative

μ = −10? Draw a picture and use this to explain your answer.