You wish to test the following claim ( H a ) at a significance level of α = 0.02 . H o : μ = 89.8 H a : μ < 89.8 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 643 with mean M = 89 and a standard deviation of S D = 11.9. What is the test statistic for this sample? .(Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value =
Added by Jeffrey H.
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We have the null hypothesis (H₀) and the alternative hypothesis (Hₐ): H₀: μ = 89.8 Hₐ: μ < 89.8 Show more…
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