Find the sample size needed to give, with 95% confidence, a margin of error within 3, if
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Find the sample size needed to give, with 95% confidence, a margin of error within ±3, if the estimated standard deviation is σ̃ = 100. If the estimated standard deviation is σ̃ = 50. If the estimated standard deviation is σ̃ = 10. Comment on how the variability in the population influences the sample size needed to reach a desired level of accuracy.
We examine the effect of different inputs on determining the sample size needed.
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Related Book For
Statistics Unlocking The Power Of Data
ISBN: 9780470601877
1st Edition
Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock
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