A few years ago, noon bicycle traffic past a busy section of campus had a mean of

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A few years ago, noon bicycle traffic past a busy section of campus had a mean of μ = 300. To see if any change in traffic has occurred, counts were taken for a sample of 15 weekdays. It was found that  = 340 and s = 30.
(a) Construct an α = .05 test of H0: μ = 300 against the alternative that some change has occurred.
(b) Obtain a 95% confidence interval for μ.
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Statistics Principles And Methods

ISBN: 9780470904114

7th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

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