(Answered) Question a study of 658 ceos conducted by the conference

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Question: A study of 658 CEOs conducted by the Conference Board reported that 250 stated that their company's greatest concern was sustained and steady top-line growth ( CEOs Greatest Concerns, USA Today Snapshots, May 8, 2006, p. 1D).

a. Construct a 95% confidence interval for the proportion of CEOs whose greatest concern was sustained and steady top-line growth.

b. Interpret the interval constructed in (a).

c. To conduct a follow-up study to estimate the population proportion of CEOs whose greatest concern was sustained and steady top-line growth to within ±0.01 with 95% confidence, how many CEOs would you survey?

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