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  3. in a recent year, the better business bureau settl

In a recent year, the Better Business Bureau settled 75% of complaints they received. (Source: USA...

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Basic Math

In a recent year, the Better Business Bureau settled 75% ofcomplaints they received. (Source: USA Today, March 2, 2009) Youhave been hired by the Bureau to investigate complaints this yearinvolving computer stores. You plan to select a random sample ofcomplaints to estimate the proportion of complaints the Bureau isable to settle. Assume the population proportion of complaintssettled for the computer stores is the 0.75, as mentioned above.Suppose your sample size is 198. What is the probability that thesample proportion will be within 4 percent of the populationproportion?

Note: You should carefully round any z-values you calculate to 4decimal places to match wamap's approach and calculations.

Answer =  

(Enter your answer as a number accurate to 4 decimalplaces.)

Answer & Explanation Solved by verified expert
3.6 Ratings (274 Votes)
SolutionGivenp population proportion of complaints settled for the computerstores 075n sample size 198We have    See Answer
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