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Diagnosis associated groups are utilized in payment for health care of Medicare funded patients. Int he creation of DRGs, assume that lengths of stay for 50 patients in one of suggested groups were the following.
S. No
Group 1
Group 2
Group 3
Group 4
1
2
3
5
4
6
8
13
18
7
9
15
19
10
17
20
12
23
11
26
43
29
49
31
52
14
34
67
36
96
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data. Are these data skewed do patients in this DRG seem to have homogeneous lengths of stay? Which measures if any must be prosecuted in description of these data? Describe your answer.
Would you expect the mean absolute percentage error to be more than or less than 0.25? Describe.
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State the values of the coefficient of correlation and coefficient of determination correct to three decimal places
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The Wilcoxon rank sum of the ranks for group and The value of the Wilcoxon signed rank statistic
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
Decide if the events A and B are mutually exclusive or not mutually exclusive. A card is drawn from standard deck of 52 playing cards.
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