Question: Q7. Using 6.84 as a planning value for the population standard deviation. 1. What sample size is required to obtain a margin of error of

Q7. Using 6.84 as a planning value for the population standard deviation.

1. What sample size is required to obtain a margin of error of 1.5 and a level of confidence of 0.95? ____________

2. What sample size is required to obtain a margin of error of 2 and a level of confidence of 0.90? ____________

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