TASK 1: Relative Standing (Z -Scores) When investigating times required for driv
ID: 3334713 • Letter: T
Question
TASK 1: Relative Standing (Z -Scores) When investigating times required for drive through service, the following results (in seconds) are obtained for two competing fast food restaurants McDonalds 337 228142360 256 290 243 168 253304 243 186 275 In-N-Out 245 16574377 300 481 428 255 328270 109 210 255 McDonalds In -n Out P1:L1 P2:L2 Min 250 max 300 min-250 max 300 n=3 1-Var Stats 1-Var Stats -=269 ×=3497 ×2=1105915 =252. 6923077 ×=3285 Ex 2-877921 5x=63. 13132426 ×=60 . 6546144 n= 13 1 1 7 . 33925 1 7 ×=112. 7359065 n= 13Explanation / Answer
Answer to the question is as follows:
a.
Score for +3 mean for
McD is : 252.6923 + 3*60.6546 = 434.656
In-n-Out : 269 +3*112.7359 = 607.208
Score for -3 mean for
McD is : 252.6923 - 3*60.6546 = 70.7285
In-n-Out : 269 -3*112.7359 = -69.2077
Score for +2.5 mean for
McD is : 252.6923 + 2.5*60.6546 = 404.329
In-n-Out : 269 +2.5*112.7359 = 550.84
b.
300 seconds for
McD is (300-252.6923)/60.6564 = .77993
In-n-out is (300-269)/112.7359 = .27498
200 seconds for
McD is (200-252.6923)/60.6564 = .77993
In-n-out is (200-269)/112.7359 = -.6121
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