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## Statistics

A sample of 25 concession stand buys at the October 22 matinee of Bride of Chucky showed the mean purchase of \$5.29 with the standard deviation of \$3.02. For the October 26 evening showing of same movie, for a sample of 25 buys the mean was \$5.12 with a standard deviation of \$2.14. The means appear to be very close, but not the variances. At α = .05, is there the difference in variances? Show all steps clearly, including an illustration of decision rule.

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M916911

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