Estimating the population proportion
If you want to be 95% confident of the estimating the population proportion to in a sampling error of ±0.05, what sample size is required?
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Assume that the study was based upon 500 small business owners. Develop 95% confidence interval estimate for the population proportion of small business owners who never check in on office when on vacation.
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The 1985 Mexico City eqrthquake had the magnitude of 8.1 on Richter scale. 1976 earthquake in Tangshan, China, was 1.26 times as intense. Determine magnitude of Tangshan eqrthquake?
An orienteer runs north at 5m/s for 120s and then west at 4m/s for 180s. Give a graphic solution to illustrate the orienteer’s resulting displacement.
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