Confidence Intervals – 2 sample Means
Confidence Intervals – 2 sample Means Name_____ 1. A group of 12 companies in the insurance industry has a mean annual profit as percent of revenue of 4.4 with a standard deviation of 1.6 while the mean annual profit as a percent of revenue for a group of 10 health care companies was 4.6 with a standard deviation of 1.4. ................
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