Listed below are lengths (in minutes) of randomly selected movies. The lengths of all movies are assumed

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Listed below are lengths (in minutes) of randomly selected movies. The lengths of all movies are assumed to be normally distributed.

110 96 125 94 132 120 136 154 149 94 119 132

a. Construct a 95% confidence interval estimate of the mean length of all movies.

b. Is it reasonable for a manager of a movie theater to plan for cleaning between movie showings by assuming that all movies run less than 130 minutes?

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Statistical Reasoning For Everyday Life

ISBN: 978-0134494043

5th Edition

Authors: Jeff Bennett, William Briggs, Mario Triola

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Question Posted: May 01, 2022 11:52 PM

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Listed below are lengths (in minutes) of randomly selected movies. The lengths of all movies are assumed

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From the given data mean 12175 s 203565 n 12 The t value at 95 co...View the full answer

Statistical Reasoning For Everyday Life

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