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Mathematics, 01.04.2021 19:30, Corykids6080
The revenue for a corporation for the years 2003-2012 is given in the table. Complete parts (a) and (b) below.
Year 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Revenue 4073.9 5285.4 6367.7 7780.5 9406.2 10,375.5 9773.9 10,697.6 11,694.7 13,296.4
(a) Calculate the mean and median for these data. The mean is (Round to two decimal places as needed.)
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Mathematics, 21.06.2019 20:30, cogger9348
3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.
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Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.
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The revenue for a corporation for the years 2003-2012 is given in the table. Complete parts (a) and...
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