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Mathematics, 04.05.2021 21:50, kortlen4808
Small Sample: During an economic downturn, 11 companies were sampled and asked whether they were planning to increase their workforce. Only 2 of the 11 companies were planning to increase their workforce. Use the small-sample method to construct an 80% confidence interval for the proportion of companies that are planning to increase their workforce. A pollster wants to construct a 95% confidence interval for the proportion of adults who believe that economic conditions are getting better. A poll taken in July 2010 estimates this proportion to be 0.36. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.01?
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Small Sample:
During an economic downturn, 11 companies were sampled and asked whether they were p...
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