Question: Any help would be appreciated 4.2.1: Confidence intervals for population means. zay7 Start Suppose the mean height in inches of all 9th grade students at

Any help would be appreciated

4.2.1: Confidence intervals for population means. zay7 Start Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 2 inches. The heights of 10 randomly selected students are 75, 64, 68, 69, 64, 65, 64, 62, 75 and 62. D = EX: 12.34 Margin of error at 90% confidence level = Ex: 1.23 90% confidence interval = [ Ex: 12.34 EX: 12.34 ] [smaller value, larger value] Check Next

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