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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:The manager of the Inlet Square Mall, near Ft. Myers.
Florida, wants to estimate the mean amount spent per
shopping visit by customers. A sample of 20 customers
reveals the following amounts spent.
$48.16
$42.22
$46.82
$51.45
$23.78 $41.86
$54.86
37.92
52.64
48.59
50.82
46.94
61.83
61.69
49.17
61.46
51.35
52.68
58.84
43.88
What is the best estimate of the population mean? De-
termine a 95 percent confidence interval. Interpret the
result. Would it be reasonable to conclude that the pop-
ulation mean is $50? What about $60?
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