Listed below are weights (grams) from a simple random sample of pennies produced after 1983 (from Data
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Listed below are weights (grams) from a simple random sample of pennies produced after 1983 (from Data Set 40 “Coin Weights” in Appendix B).
a. Use 1000 bootstrap samples to construct a 95% confidence interval estimate of σ.
b. How does the result compare to the confidence interval found in Exercise 14 in Section 73?
Transcribed Image Text:
Data Set 40: Coin Weights INDIAN PENNIES WHEAT PENNIES PRE1983 PENNIES 3.0630 3.1366 3.0487 3.0755 2.9149 3.1692 3.1358 3.0476 2.9753 3.1029 3.1582 3.0406 3.0762 3.0398 3.1043 POST1983 PENNIES 2.5113 2.4907 2.5024 2.5298 2.4950 CANADIAN PENNIES PRE1964 QUARTERS 6.2771 6.2371 6.1501 6.0002 6.1275 3.2214 3.2326 2.4662 2.8357 3.3189 POST1964 QUARTERS 5.7027 5.7495 5.7050 5.5941 5.7247 DOLLAR COINS 8.1008 8.1072 8.0271 8.0813 8.0241
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