Question 22 (6 points) d Provide an appropriate response. The printing company i

Question

Question 22 (6 points) d Provide an appropriate response. The printing company is interested in comparing the speed of four different desktop printers; four different documents are used for the experiment. Each test consists of randomly assigning one printer to one of the documents. The document is printed and the time to print in seconds is recorded. Each printer/document combination is tested. Calculate the F-ratio. Can you reject Ho using a-0.05? The ANOVA table is listed below. Use a -0.05 Analysis of Variance Source SS df MS F-ratio Printer 4.862 3 1.621 Error 3.150 12 0.263 Total 8.012 O A) F-Ratio -6.163 Do not reject Ho B) F-Ratio-6.163; Reject Ho C) F-Ratio-0.162; Reject Ho D) F-Ratio-0.540; Do not reject Ho E) F-Ratio 0.162; Do not reject Ho Saved Question 23 (6 points) 2 3 4. 5 6

Explanation / Answer

Sol:

F=1.621/0.263

F=6.163

For 3 and 12 df p=0.0089

p<0.05

Reject null hypotehsis

4 group means are different.

F=6.163,P=0.0089 REJECT HO

MARK OPTION B

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