ative cars among residence of two neighboring cities differ. In order to est, the researcher considers two samples from two cities. In one city, 75 ut of 185 randomly selected residence reported to own foreign cars, whereas in the other city, 68 out of 195 randomly selected residence eported to have native cars. The researcher wishes to test Ho: P₁ = P2 against Ha: P₁ P2. The value of the test statistic z is

MATLAB: An Introduction with Applications
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A researcher wishes to test if the proportions of users of foreign and
native cars among residence of two neighboring cities differ. In order to
test, the researcher considers two samples from two cities. In one city, 75
out of 185 randomly selected residence reported to own foreign cars,
whereas in the other city, 68 out of 195 randomly selected residence
reported to have native cars.
The researcher wishes to test Ho: P₁=p2 against Ha: P₁ P2.
The value of the test statistic z is
Transcribed Image Text:A researcher wishes to test if the proportions of users of foreign and native cars among residence of two neighboring cities differ. In order to test, the researcher considers two samples from two cities. In one city, 75 out of 185 randomly selected residence reported to own foreign cars, whereas in the other city, 68 out of 195 randomly selected residence reported to have native cars. The researcher wishes to test Ho: P₁=p2 against Ha: P₁ P2. The value of the test statistic z is
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