Does the background music affect the behavior of supermarket shoppers? An experiment to answer this question was conducted in a supermarket during the relatively stable summer shopping months. Two days were selected in midweek. One day was assigned to receive no background music. During the second day slow-tempo background music was played. The daily sales (in dollars) for twelve weeks are shown in the accompanying table.NoneSlow tempo$15,172$15,91715,48516,11013,92213,81812,20414,70915,50113,98214,10616,41614,60814,72712,94614,82315,00214,82514,67015,94916,20215,48813,28613,055Estimate the difference in the actual average daily sales between no-music days versus slow-tempo days using a 95% confidence interval. Does the data suggest that, on the average, background music positively affects daily sales? Show all necessary work.

sample size (n1) = 12 sample mean (x̄1) = Σx1 /n1 = 173104/12 = 14425.33 sample standard…

Answered: stion was conducted in a supermarket…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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Does the background music affect the behavior of supermarket shoppers? An experiment to answer this question was conducted in a supermarket during the relatively stable summer shopping months. Two days were selected in midweek. One day was assigned to receive no background music. During the second day slow-tempo background music was played. The daily sales (in dollars) for twelve weeks are shown in the accompanying table.

None	Slow tempo
$15,172	$15,917
15,485	16,110
13,922	13,818
12,204	14,709
15,501	13,982
14,106	16,416
14,608	14,727
12,946	14,823
15,002	14,825
14,670	15,949
16,202	15,488
13,286	13,055

Estimate the difference in the actual average daily sales between no-music days versus slow-tempo days using a 95% confidence interval. Does the data suggest that, on the average, background music positively affects daily sales? Show all necessary work.

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