Question
Claim: Fewer than 97% of adults have a cell phone. In a reputable poll of 1016...
Claim: Fewer than
97%
of adults have a cell phone. In a reputable poll of
1016
adults,
915
said that they have a cell phone. Find the value of the test statistic.
Homework Answers
Answer #1
We have for given example,
Population proportion value is =0.97
x=915
n=1016
Estimate for sample proportion 
Z test statistic formula for proportion
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