PracticeFinal[1]

# PracticeFinal[1] - Find the mean median range upper...

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Find the mean, median, range, upper quartile, lower quartile, inter-quartile range, sample variance, sample standard deviation, and coefficient of variation. BridgetJones X 1 2 Memento X 2 2 3 9 14 196 5 25 14 196 7 49 16 256 10 100 18 324 11 121 20 400 13 169 21 441 13 169 21 441 13 169 22 484 14 196 23 529 15 225 24 576 15 225 25 625 16 256 27 729 16 256 28 784 18 324 30 900 19 361 31 961 19 361 31 961 20 400 32 1024 22 484 35 1225 23 529 36 1296 24 576 37 1369 ( X 1 )= 296 X 1 2 = 5004 ( X 2 ) = 505 X 2 2 = 13717 n=20 n=20 A. Chi Square Analysis: Afraid to Walk at Night By Gender Afraid to walk at night Men Women No 150 91 241 Yes 30 68 98 Total 180 159 N=339 The null hypothesis is that being afraid to walk at night is independent of whether or not a person is male or female. In other words, a woman is equally likely to be afraid to walk at night than men.

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iFind Chi Square obtained: Below is a sample table to use to organize data: Observed Expected (obs–exp) (obs–exp) 2 (obs–exp) 2 exp ii. Find Chi square critical with .05 level of significance and 1 degree of freedom. B
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PracticeFinal[1] - Find the mean median range upper...

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