a. How many variables are in the dataset? What are they? b. Which variables are quantitative and which are categorical? c. What type of measurement scale is used for each variable?
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- The following information regarding the ten richest Americans was reported in a recent issue of Forbes. Name Ranking Worth($Billions) Age Marital Status Source Gates, William 1 59.0 51 married Microsoft Buffett, Warren 2 52.0 77 married Berkshire Hathaway Adelson, Sheldon 3 28.0 74 married casinos, hotels Ellison, L. J. 4 26.0 63 married Oracle Brin, Sergey 5 18.5 34 married Google Page, Larry 5 18.5 34 single Google Kerkorian, Kirk 7 18.0 90 divorced investments, casinos Dell, Michael 8 17.2 42 married Dell Koch, Charles 9 17.0 71 married oil, commodities Koch, David 9 17.0 67 married oil, commodities a. How many elements are in the above data set? b. How many variables are in this data set? c. How many observations are in this data set? d. Which variables are categorical and which are quantitative?…From time to time, the UTM Human Resource (UTMHR) department observes various employees fortheir work productivity. Recently UTMHR wanted to check whether the four employees at theDepartment XYZ counters, serve on average the same number of customers per hour. The HR managerobserved each of the four employees for a certain number of hours. The following Table 5 gives thenumber of customers served by the four employees during each of the observed hours. employee a employee b employee c employee d 19 14 11 24 21 16 14 19 26 14 21 21 24 13 13 26 18 17 16 20 employee a employee b employee c employee d mean 21.6 14.8 15.0 22.0 s 3.4 ? 3.8 ? c) Find variance between sample,d) Find variance within sample, e) Calculate the test statistic, F.f) Determine the numerator and denominator.g) Find the critical value of F at the 5% significance level, and test the claim that the mean numberof customers served per hour by each of these four employees is…