A survey was conducted to compare the mean cost of a meal at fast food restaurants in two different cities. City Sample mean 26 $4.05 $0.55 $0.85 32 $5.15 Assume that the population variances of both groups are the same. Calculate the test statistic to test whether there is sufficient evidence that the mean costs of a meal at fast food restaurants in two different cities are different.

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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A survey was conducted to compare the mean cost of a meal at fast food restaurants in two different cities.
City
Sample
mean
26
$4.05
$0.55
$0.85
32
$5.15
Assume that the population variances of both groups are the same. Calculate the test statistic to test whether
there is sufficient evidence that the mean costs of a meal at fast food restaurants in two different cities are
different.
Transcribed Image Text:A survey was conducted to compare the mean cost of a meal at fast food restaurants in two different cities. City Sample mean 26 $4.05 $0.55 $0.85 32 $5.15 Assume that the population variances of both groups are the same. Calculate the test statistic to test whether there is sufficient evidence that the mean costs of a meal at fast food restaurants in two different cities are different.
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