The gas mileages​ (in miles per​ gallon) of 23 randomly selected sports cars are listed in the accompanying table. Assume the mileages are not normally distributed. Use the standard normal distribution or the​ t-distribution to construct a 95​% confidence interval for the population mean. Justify your decision. If neither distribution can be​ used, explain why. Interpret the results.   Click the icon to view the sports car gas mileages. gas mileages :21 31 17 21 20 24 18 24 25 20 20 29 26 25 22 16 21 25 23 20 22 21 19   Let σ be the population standard deviation and let n be the sample size. Which distribution should be used to construct the confidence​ interval?   ▼     be used to construct the confidence​ interval, since

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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The gas mileages​ (in miles per​ gallon) of
23
randomly selected sports cars are listed in the accompanying table. Assume the mileages are not normally distributed. Use the standard normal distribution or the​ t-distribution to construct a
95​%
confidence interval for the population mean. Justify your decision. If neither distribution can be​ used, explain why. Interpret the results.
 
Click the icon to view the sports car gas mileages.
gas mileages :21
31
17
21
20
24
18
24
25
20
20
29
26
25
22
16
21
25
23
20
22
21
19
 
Let
σ
be the population standard deviation and let n be the sample size. Which distribution should be used to construct the confidence​ interval?
 
 
 
be used to construct the confidence​ interval, since
 
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