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0 Question 17 v A random sample of 45 female professional soccer players found an average height of 66 inches. It is known that the
0 Question 17 v A random sample of 45 female professional soccer players found an average height of 66 inches. It is known that the standard deviation in heights for female soccer players is 2.5 inches. Build a 80% CI for the mean height of female professional soccer players. This will be a Z-Interval since 0' is known. To find the Margin of Error, E, we need to find the Critical Value, Z6. To do this we use invNorm(C + (1- CJIZ], where in this problem C = 0.80. Round to three decimals. b.Zc= . . 0' . Next we find the Margin of Error: E = ZC - . Round to one decimal. 71 (LE: Finally, we compute our CI: 3E E
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