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USA Today reported that 11% of all books sold are of the romance genre. If a local bookstore sells 316 books on a given day, what is the probability that
(a) Fewer than 40 are romances?
(b) At least 25 are romances?
(c) Between 25 and 40 romances
(d) In the solution to this problem, what is n? p? q? Does it appear that both np and nq are larger than 5? Why is this important consideration?
The analysis of covariance (ANCOVA) is generally useful for _______________
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The results for college x was a mean of 5 hours and an estimated population variance of 2 hours: for college y, m= 4, s 2 =1.5; and for college Z, M= 6, s 2 =2.5 what should you conclude? Use the .5 level.
An instructor claims the average time to take a statistics test is greater than 39 min. As, if a sample of 33 students took 43 min. is the instructor's claim true?
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Determine the range and standard deviation of the times.
Twenty three percent of automobiles are not covered by insurance. On a particular weekend, 35 automobiles are involved in accident.
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