30 Jul Calculate the mean and standard deviation for this data set: 2
Calculate the mean and standard deviation for this data set: 250, 300, 300, 325, 325, 350, 350, 350, 350, 375, 400, 425, 425, 450, 450, 500 (Note: When computing go out to three decimal places and remember to use n – 1 rather than n).M = 370.313M = 380.313M = 370.343M = 470.373Flag this QuestionQuestion 31 ptsCalculate the standard deviation for this data set: 250, 300, 300, 325, 325, 350, 350, 350, 350, 375, 400, 425, 425, 450, 450, 500 (Note: When computing go out to three decimal places and remember to use n – 1 rather than n).SD = 66.795SD = 56.596SD = 66.595SD = 36.495Flag this QuestionQuestion 41 ptsHow many books are above the mean?9754Flag this QuestionQuestion 51 ptsHow many are below the mean?9754Flag this QuestionQuestion 61 ptsHow many books are within one standard deviation of the mean?111087Flag this QuestionQuestion 71 ptsWhat percent of the data is more than one standard deviation above the mean?33.56%35.76%43.57%43.75%Flag this QuestionQuestion 81 ptsProvide the z score for a book with an original number of pages of 425. (Round to three decimal places)0.3050.821-1.8070.680Flag this QuestionQuestion 91 ptsProvide the z score for a book with an original number of pages of 300. (Round to three decimal places)-1.0560.680-1.8070.070How many pages does a book need to have to fall into the top 25% of pages in this data set?The book needs to over 494.76 pages to be in the top 25%The book needs to be over 234.78 pages to be in the top 25%The book needs to have at least 374.84 pages to be in the top 25%The book needs to have at least 434.87 pages to be in the top 25%
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