If you have 100 data values and want to create a histogram, how many bins would Sturges' Rule suggest for your histogram? (Round up your answer to the nearest whole number). Answer: a. Student GPAs: Bob's z-score is Z = + 1.5 3.0 a = 0.30 b. Weekly work hours: Sarah's Z-score is Z + 2 22 b = 6 Find the original data value corresponding to each standardized 2-score. (Round your answers to 2 decimal places.) A) Bob's GPA B) Sarah's hours The General Accounting Office conducted random testing of retail gasoline pumps in Michigan, Missouri, Oregon, and Tennessee. The study concluded that 49 percent of gasoline pumps nationwide are mislabeled by more than one-half of an octane point. The sampling technique most likely used in this study was: sampling