According to a recent FCC survey, one in six cell phone users has experienced bill shock from
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According to a recent FCC survey, one in six cell phone users has experienced "bill shock" from unexpectedly high cell phone bills (Tech Daily Dose, May 26, 2010).
a. Discuss the sampling distribution of the sample proportion based on a sample of 200 cell phone users. Is it appropriate to use the normal distribution approximation for the sample proportion?
b. What is the probability that more than 20% of cell phone users in the sample have experienced "bill shock"?
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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ISBN: 9780078020544
1st Edition
Authors: Sanjiv Jaggia, Alison Kelly
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