Select a random sample of 20 of the record high temperatures in the United States, found in
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Select a random sample of 20 of the record high temperatures in the United States, found in Data Set I in Appendix B. Find the proportion of temperatures below 110°. Construct a 95% confidence interval for this proportion. Then find the true proportion of temperatures below 110°, using all the data. Is the true proportion contained in the confidence interval? Explain.
Data from in Data SET I Appendix B
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Elementary Statistics A Step By Step Approach
ISBN: 9780077665807
9th Edition
Authors: Allan G. Bluman
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