Intervais constructed should contain the population mean worth of Coupons LAPIain wity Use the following...

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Intervais constructed should contain the population mean worth of Coupons LAPIain wity Use the following information to answer the next two exercises A quality control specialist for a restaurant chain takes a random sample of size 12 to check the amount of soda served in the 16 oz serving size The sample mean is 13 30 with a sample standard deviation of 1 55 Assume the underlying population is normally distributed 115 Find the 95 percent confidence interval for the true population mean for the amount of soda served a 12 42 14 18 b 12 32 14 29 c 12 50 14 10 d Impossible to determine 116 Which of the following is the error bound a 0 87 b 1 98 c 0 99 171

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