# Z test for population mean

1. A manufacturing cell claims they make 500 parts per day. Management thinks they're wrong. Wanting to test at the 10% significance level we measured for 36 days.

X = 507

S = 24

Normality assumed

Determine if their claim is correct?

https://brainmass.com/statistics/z-test/z-test-for-population-mean-problem-247981

#### Solution Summary

The solution provides step by step method for the calculation of Z test for population mean . Formula for the calculation and Interpretations of the results are also included.

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