Question
The population standard deviation for the heights of dogs, in inches, in a city is 6.2 inches. If we want to be 95% confident that
The population standard deviation for the heights of dogs, in inches, in a city is 6.2 inches. If we want to be 95% confident that the sample mean is within 2 inches of the true population mean, what is the minimum sample size that can be taken?
z0.10 | z0.05 | z0.04 | z0.025 | z0.01 | z0.005 |
|---|---|---|---|---|---|
1.282 | 1.645 | 1.751 | 1.960 | 2.326 | 2.576 |
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Calculus
Authors: James Stewart
6th Edition
0495011606, 978-0495011606
