From Data Set VI in Appendix B, select a sample of 20 values and find the 90% confidence interval of the mean of the number of acres. Find the mean of all the values, and determine if the confidence interval contains the mean.

Data from in Data SET VI Appendix B

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Data Set VI Acreage of U.S. National Parks, in Thousands of Acres 41 36 183 1013 520 539 2574 505 402 28 66 338 4724 3225 77 3575 106 913 196 7656 233 223 61 1181 27 650 52 94 70 2220 775 46 1449 308 217 462 52 75 13 760 169 64 7075 77 5 1670 236 265 132 143