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CHALLENGE ACTIVITY 6.2.1: Confidence intervals for population means. 469946.3289048.qx3zqy7 Jump to level 1 Suppose the mean height in inches of all 9th grade students
CHALLENGE ACTIVITY 6.2.1: Confidence intervals for population means. 469946.3289048.qx3zqy7 Jump to level 1 Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 4 inches. The heights of 7 randomly selected students are 65, 65, 61, 61, 72, 71 and 63. Ex: 12.34 Margin of error at 99% confidence level = Ex: 1.23 99% confidence interval = [Ex: 12.34 Ex: 12.34 ] [smaller value, larger value] 1 Check Next 2
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Linear Algebra and Its Applications
Authors: David C. Lay
4th edition
321791541, 978-0321388834, 978-0321791542
