A biologist is interested in studying the effect of vitamin supplements on deer mouse body length. Assume that the standard deviation is 8 mm. How many deer mice would be needed to estimate the mean to within 2 mm with 95% confidence?

MATLAB: An Introduction with Applications
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A biologist is interested in studying the effect of vitamin supplements on deer mouse body
length. Assume that the standard deviation is 8 mm. How many deer mice would be needed to
estimate the mean to within 2 mm with 95% confidence?
A
6. A frugal world traveler would like to estimate the average cost of a plane ticket to Italy. The
traveler takes a sample of 25 ticket prices and finds that the sample mean is $1300 and the
sample standard deviation is $40. Create a 99% confidence interval for the mean price.
Transcribed Image Text:A biologist is interested in studying the effect of vitamin supplements on deer mouse body length. Assume that the standard deviation is 8 mm. How many deer mice would be needed to estimate the mean to within 2 mm with 95% confidence? A 6. A frugal world traveler would like to estimate the average cost of a plane ticket to Italy. The traveler takes a sample of 25 ticket prices and finds that the sample mean is $1300 and the sample standard deviation is $40. Create a 99% confidence interval for the mean price.
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