Computing Task 1 2 3 4 5 6 7 8 9 10 11 12 Cyber Inventory Counter Magic 24 23.1 16.7 20.4 21.6 23.7 37.5 31.4 14.9 37.3 17.9 15.5 29 19.9 17.7 20.7 42.1 36.1 21.8 40.3 26 15.5 35.4 25.5

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Chapter1: Starting With Matlab
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3) Two computer software packages (Cyber Counter and Inventory Magic) are being
considered for use in the inventory control department of a small manufacturing firm.
a) What is the appropriate null and alternate hypothesis to determine if the time to
complete a computing task depends on software package?
b) Choose a level of a. Use a = 0.05 for this problem.
c) To test the hypothesis, the firm has selected 12 different computing tasks that are
typical of the kinds of jobs such a package would have to perform, then recorded
the number of seconds each package required to complete each task. The results
appear in the Software worksheet of the Chp 18 HW data workbook on Moodle.
Use the Wilcoxon Signed Rank Test with a = 0.05 to determine if there is a
difference in median task computing time between the two software packages.
Calculate T, the sum of the positive signed ranks.
d) Sketch the sampling distribution. Include the critical value and test statistic
e) Draw a conclusion for the hypothesis test. Make sure you state your conclusion in
the context of the problem.
f) What is the p-value for the hypothesis test.
Transcribed Image Text:3) Two computer software packages (Cyber Counter and Inventory Magic) are being considered for use in the inventory control department of a small manufacturing firm. a) What is the appropriate null and alternate hypothesis to determine if the time to complete a computing task depends on software package? b) Choose a level of a. Use a = 0.05 for this problem. c) To test the hypothesis, the firm has selected 12 different computing tasks that are typical of the kinds of jobs such a package would have to perform, then recorded the number of seconds each package required to complete each task. The results appear in the Software worksheet of the Chp 18 HW data workbook on Moodle. Use the Wilcoxon Signed Rank Test with a = 0.05 to determine if there is a difference in median task computing time between the two software packages. Calculate T, the sum of the positive signed ranks. d) Sketch the sampling distribution. Include the critical value and test statistic e) Draw a conclusion for the hypothesis test. Make sure you state your conclusion in the context of the problem. f) What is the p-value for the hypothesis test.
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Computing Cyber Inventory
Task
Counter
Magic
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Transcribed Image Text:1 23456789 7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Computing Cyber Inventory Task Counter Magic 1 24 23.1 2 16.7 20.4 21.6 17.7 23.7 20.7 37.5 42.1 31.4 36.1 14.9 21.8 37.3 40.3 17.9 26 15.5 15.5 29 35.4 19.9 25.5 3 4 5 6 7 8 9 10 11 12
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