# Example Hypothesis Testing Problem

Suppose a wedding photographer claims he can finish a bride's wedding photos in less than 7 days. You are given the following data from a sample.

Sample size: 40

Population standard deviation: 1

Sample mean: 7.2

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#### Solution Preview

We need to test

H0: mu>=7

Ha: mu<7

Given xbar=7.2, sigma=1, n=40. Using z-statistic, we can ...

#### Solution Summary

This solution provides assistance with the hypothesis testing problem.

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