Mathematics, 12.08.2020 05:01 luiscortes011001
According to a recent FCC survey, one in four cell phone users has experienced bill shock from unexpectedly high cell phone bills. A sample of 200 cell phone users was collected.
Required:
a. What is the probability that more than 20% of cell phone users in the sample have experienced bill shock?
b. What is the standard error of the proportion?
Answers: 3
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