Provide an interpretation for the confidence interval.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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The mean amount of money spent per week on gas by a sample of 32 Oxford drivers was found to be $32.38 with a standard deviation of $2.63.
 
Step 3 of 4: 
Provide an interpretation for the confidence interval.
Expert Solution
Step 1: Determine the given data in the question

Let mu be the population mean amount spent per week on gas.

Given that,

Sample mean left parenthesis x with bar on top right parenthesis equals 32.38

Sample size left parenthesis n right parenthesis equals 32

Sample sd left parenthesis s d right parenthesis equals 2.63

Confidence level left parenthesis C right parenthesis equals 95 percent sign equals 0.95

alpha equals 1 minus C
equals 1 minus 0.95
equals 0.05


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