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A sample of 8 different quarterly investment returns generated by the common stock of a large company showed the following results in thousands of
A sample of 8 different quarterly investment returns generated by the common stock of a large company showed the following results in thousands of dollars: 20.0 -20.5 12.2 12.6 10.5 -5.8 -18.7 15.3 Using Excel and rounding final answers to the nearest thousandth, a 95% confidence interval for the mean quarterly dollar return of this common stock is to
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