A plant manager wanted to make a decision as to whether to purchase machine A or B. The decision criterion was the time (in hours) a machine operated by a technician took to complete a certain task. In particular, the manager wanted to find out if the mean times taken by the machines to complete the task were different. Eight technicians were used in the experiment with each technician using both machines A and B in a randomized order. The design of the experiment is a randomised complete block design. Hence the analysis of variance of the responses obtains SSTO= SSB + SST + SSE where SSTO, SSB, SST and SSE are the total, block, treatment and error sums of squares, respectively. If the design of the experiment was a completely randomised design, then the equal number of replications of each treatment would be Select one: O A. 2 OB. 8 O C. 16 OD. 4
A plant manager wanted to make a decision as to whether to purchase machine A or B. The decision criterion was the time (in hours) a machine operated by a technician took to complete a certain task. In particular, the manager wanted to find out if the mean times taken by the machines to complete the task were different. Eight technicians were used in the experiment with each technician using both machines A and B in a randomized order. The design of the experiment is a randomised complete block design. Hence the analysis of variance of the responses obtains SSTO= SSB + SST + SSE where SSTO, SSB, SST and SSE are the total, block, treatment and error sums of squares, respectively. If the design of the experiment was a completely randomised design, then the equal number of replications of each treatment would be Select one: O A. 2 OB. 8 O C. 16 OD. 4
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
Transcribed Image Text:A plant manager wanted to make a decision as to whether to purchase machine A or B. The decision criterion was the
time (in hours) a machine operated by a technician took to complete a certain task. In particular, the manager wanted to
find out if the mean times taken by the machines to complete the task were different. Eight technicians were used in the
experiment with each technician using both machines A and B in a randomized order. The design of the experiment is a
randomised complete block design. Hence the analysis of variance of the responses obtains
SSTOSSB + SST + SSE
where SSTO, SSB, SST and SSE are the total, block, treatment and error sums of squares, respectively.
If the design of the experiment was a completely randomised design, then the equal number of replications of each
treatment would be
Select one:
O A. 2
OB. 8
O C. 16.
OD. 4
Question 13
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