Confidence level and sample data
Use the confidence level and sample data to find the margin of error E. Systolic blood pressures for women aged 18-24: 94% confidence; n = 100, = 115.1 mm Hg, sigma s = 12.6 mm Hg.
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A local drugstore knows that on the average 60 people stop by his store per hour. What is the probability that in a given 3-minute period nobody enters the store?
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