=+b) A 90% confidence interval for the mean of sales per person 10 minutes before the movie
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=+b) A 90% confidence interval for the mean of sales per person 10 minutes before the movie starts is ($6.65, $7.25).
Explain how to interpret this interval.
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Related Book For
Business Statistics Plus Pearson Mylab Statistics With Pearson Etext
ISBN: 978-1292243726
3rd Edition
Authors: Norean R Sharpe ,Richard D De Veaux ,Paul Velleman
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