Chapter 8_Tests_Quizzes - Test 8A.pdf - Test 8A AP...

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Test 8AAP StatisticsName:Part 1:Multiple Choice.Circle the letter corresponding to the best answer.1.In an opinion poll, 25% of a random sample of 200 people said that they were stronglyopposed to having a state lottery.The standard error of the sample proportion isapproximately(a)0.0094(b) 0.0306(c) 0.0353(d) 0.2500(e) 6.1237
2.A marketing consultant wants to estimate the proportion of all shoppers at a certain mall whomake at least one purchase.He stands at a mall exit for two hours on a weekday afternoonand flips a coin each time a shopper leaves.If the coin comes up heads, he asks them if theyhave made any purchases during this visit. After two hours, he has 132 responses, 104 ofwhom made a purchase.Which condition for constructing a confidence interval for aproportion has the consultant failed to satisfy?
378The Practice of Statistics, 4/e- Chapter 8© 2011 BFW Publishers
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