37. Estimate the sum or difference in each of the following by using (i) rounding and (ii) front-end estimation. Then perform the computation to see how close your estimates are to the actual answers. a. 47.62 27.99 13.14 + 7.61 C. 5.85 6.17 9.1 + 4.23 bas 7sq b. 79.86 - 27.37 phismosy 251.0 5.0.2.0 lol arli stalquro d. 232.65 - 78.92

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A:

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A: If the confidence interval contains the value 0, the null hypothesis is not rejected.  If the…