Mathematics, 02.07.2020 01:01 LHawk35531
In a recent survey, a random sample of 130 families were asked about whether they have a pet, and 67 reported that they have a pet. What value of z should be used to calculate a confidence interval with a 90% confidence level
Answers: 1
, and a confidence level of 
, we have the following confidence interval of proportions.
.
, z is the value of Z that has a pvalue of 
, so 
. 
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In a recent survey, a random sample of 130 families were asked about whether they have a pet, and 67...
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