If you want to be 99% confident of estimating the population proportion to within a sampling error of ± 0.04, what sample size is needed?
Answer to relevant QuestionsIf you want to be 95% confident of estimating the population proportion to within a sampling error of ± 0.02 and there is historical evidence that the population proportion is approximately 0.40, what sample size is needed? An advertising executive wants to estimate the mean weekly amount of time consumers spend watching traditional television daily. Based on previous studies, the standard deviation is assumed to be 20 minutes. The executive ...What prevents consumers from sharing data with retailers? A recent Click Fo X-bar Consumer Behavior Survey (bit. ly/ 1fAfJAI) found that 32% of consumers responded “breaches of consumer data.” a. To conduct a follow- up ...A national association devoted to HR and workplace pro-grams, practices, and training wants to study HR department practices and employee turnover of its member organizations. HR professionals and organization executives ...The manufacturer of Boston and Vermont asphalt shingles knows that product weight is a major factor in a customer’s perception of quality. The last stage of the assembly line packages the shingles before they are placed on ...
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