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Ch%203%20in%20Excel

Ch%203%20in%20Excel - 42 42 1st 2nd always the same 50th P...

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46 54 42 46 32 Mean 44 Median 46 Mode 46
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Order No. Dawson Clark 1 9 8 2 10 7 3 9 10 4 11 10 5 9 13 6 10 12 7 11 10 8 9 9 9 9 15 10 10 10 [units] Mean 9.7 10.4 Days Sample Variance 0.677778 5.6 Days2 Sample Std Dev 0.823273 2.366432 Days Manual computation of sample variance - Dawson Order No. Xi Xi - X bar (Xi - X bar)^2 1 9 -0.7 0.49 2 10 0.3 0.09 3 9 -0.7 0.49 4 11 1.3 1.69 5 9 -0.7 0.49 6 10 0.3 0.09 7 11 1.3 1.69 8 9 -0.7 0.49 9 9 -0.7 0.49 10 10 0.3 0.09 Sum 6.1 x bar 9.7 s2 0.677778
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Order No. Dawson Clark Class Freq 1 9 8 8 0 2 10 7 9 5 3 9 10 10 3 4 11 10 11 2 5 9 13 12 0 6 10 12 7 11 10 8 9 9 9 9 15 10 10 10 [units] Mean 9.7 10.4 Days Sample Variance 0.677778 5.6 Days2 Sample Std Dev 0.823273 2.366432 Days Coef. Of Variation 8.5% 22.8% "8.5% of the mean is the standard deviation" "the standard deviation is 8.5% of the mean" 8 9 10 11 12 0 1 2 3 4 5 6 Freq Axis Title Axis Title
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46 54 42 46 32 Manual Excel 85th Percentile 54 49.2 25th percentile
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Unformatted text preview: 42 42 1st Quartile 42 42 2nd Quartile 46 46 Median 46 46 always the same 50th Percentile 46 46 Week No. # commercials Sales (1000s) 1 2 50 2 5 57 3 1 41 4 3 54 5 4 54 6 1 38 7 5 63 8 3 48 9 4 59 10 2 46 Scatter Diagram x y 2 50 5 57 1 41 3 54 4 54 1 38 5 63 3 48 4 59 2 46 "the more commercials, the greater the sales" "# of commercials and sales are positively related" "there is a positive linear relationship between commercials and sales" Correlation coefficient 0.930491 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 20 40 60 80 Commercials vs Sales # Commercials Sales (1000s)...
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