Question: 3.10.9. With reference to Exercise 2.8.2, give the approximate number of observations necessary to estimate the mean rat weight to within 1 unit with 95%

3.10.9. With reference to Exercise 2.8.2, give the approximate number of observations necessary to estimate the mean rat weight to within 1 unit with 95% confidence. How large a sample is needed to get a reasonable test of H0 : μ = 55 when μ = 54 using Cox’s rule?

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