You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 14. Find the critical value that corresponds to a confidence level of 80%. (Report answer accurate to three decimal places with appropriate rounding.) t a/2 = ± _____
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We are given a sample size of 14, so the degrees of freedom (df) will be 14 - 1 = 13. Show more…
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