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An investment advisor reads in The Wall Street Journal that 47% of US retirees agree that they
have build a large enough nest egg for retirement (Glenn Reffenanch, Dying Broke May Be a
Good idea. In Theory, November 23, 2020, pg. R2). A local bank wants to know the percentage
among its customers is also 47%. The analyst decides to use a significance level that balances
concerns about a Type I and a Type II error. After gathering a sample of 69 customers, the
analyst calculates a p-value of 0.1842. Is the percentage among the banks customers the same as
the US or different? If the banks customers are the same as the US, enter the number 1. If the
banks customers are different that the Us, enter the number 0.

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An investment advisor reads in The Wall Street Journal that 47 of U.pdf

  • 1. An investment advisor reads in The Wall Street Journal that 47% of US retirees agree that they have build a large enough nest egg for retirement (Glenn Reffenanch, Dying Broke May Be a Good idea. In Theory, November 23, 2020, pg. R2). A local bank wants to know the percentage among its customers is also 47%. The analyst decides to use a significance level that balances concerns about a Type I and a Type II error. After gathering a sample of 69 customers, the analyst calculates a p-value of 0.1842. Is the percentage among the banks customers the same as the US or different? If the banks customers are the same as the US, enter the number 1. If the banks customers are different that the Us, enter the number 0.