In: Statistics and Probability
Suppose the manager of a shoe store wants to determine the current percentage of customers who are males. How many customers should the manager survey in order to be 92% confident that the estimated (sample) proportion is within 10 percentage points of the true population proportion of customers who are males?
z0.10 | z0.05 | z0.04 | z0.025 | z0.01 | z0.005 |
---|---|---|---|---|---|
1.282 | 1.645 | 1.751 | 1.960 | 2.326 | 2.576 |