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Statistics - Population Means, Known and Unknown

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C. Say a fast-food franchiser is considering building a restaurant in a local mall. According to franchise headquarters, a site is acceptable only if the number of pedestrians passing the location averages more than 100 per hour. A random sample of 40 hours produced a sample mean of 105 persons and a sample standard deviation of 12 persons. Do these data provide sufficient evidence to establish the site is acceptable at a 95% confidence level? Do the hypothesis test using a confidence interval and state a p-value.

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Solution Summary

Population means, known and unknowns are examined. The expert determines if hypothesis tests using a confidence interval and states a p-value are determined. A complete, neat and step-by-step solution is provided.

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n = 40, x-bar = 105, s = 12

H0: The site is not acceptable, that is m <= 100 vs Ha: The site is acceptable, that is m > 100

Since the population standard ...

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