
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Hi, please see attached. Having trouble with the calculation of the significance test of this problem. Thanks.

Transcribed Image Text:20.
brand were
Suppose that two brands of gasoline were being compared for mileage. Samples of each
were taken and used in identical cars under identical conditions. Nine tests were made of
Brand I and six tests of Brand II. The following miles per gallon were found.
Brand Brand II
13
15
16
18
15
23
17
14
19
21
16
17
12
13
Are the two brands significantly different? What must be assumed here in order to carry out h
test?
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