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7. Sampling Distributions & Confidence Intervals: Mean
Sampling Distribution of the Sample Mean and Central Limit Theorem
7. Sampling Distributions & Confidence Intervals: Mean

Sampling Distribution of the Sample Mean and Central Limit Theorem: Videos & Practice Problems

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46 of 0
Problem 46Multiple Choice

A pharmacy finds that the time pharmacists take to fill a prescription has a mean of μ=8.6\(\mu\)=8.6 minutes and a standard deviation of σ=2.1\(\sigma\)=2.1 minutes, and the distribution is clearly skewed to the left. What is the smallest sample size that will allow you to use the normal model for the sample mean?