It has been suggested that däily prôdüčtion of a suba music and free coffee and doughnuts were provided during the day. Management agreed to try the scheme for a limited time. A listing of the number of subassemblies produced per week before and after the new work environment for each employee follows. mbly wol Production after Production after Production Installing Lighting, Music, etc. Past Past Production Installing Lighting, Employee wWJ Record 21 Music, etc. 25 22 Employee Record JD 23 33 SB 26 26 OP 25 MD 24 30 CD 21 23 RCF 17 25 PA 16 17 MF 20 19 RRT 20 15 22 AT 17 UHH 30 29 QQ 23 30 IB Click here for the Excel Data File Using the Wilcoxon signed-rank test, determine whether the suggested changes are worthwhile. Assume the level of significance is 0.05. a. State the null and alternate hypotheses. Ho H

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It has been suggested that daily production of a subassembly would be increased if better lighting were installed and background
music and free coffee and doughnuts were provided during the day. Management agreed to try the scheme for a limited time. A listing
of the number of subassemblies produced per week before and after the new work environment for each employee follows.
Production after
Production Installing Lighting,
Music, etc.
Past
Production after
Production Installing Lighting,
Music, etc.
Past
Record
Employee
Employee
WWJ
Record
JD
23
33
21
25
SB
26
26
OP
25
22
MD
24
30
CD
21
23
RCF
17
25
PA
16
17
MF
20
19
RRT
20
15
24
22
AT
17
9
UHH
IB
30
29
QQ
23
30
E Click here for the Excel Data File
Using the Wilcoxon signed-rank test, determine whether the suggested changes are worthwhile. Assume the level of significance is
0.05.
a. State the null and alternate hypotheses.
Ho
H:
Transcribed Image Text:It has been suggested that daily production of a subassembly would be increased if better lighting were installed and background music and free coffee and doughnuts were provided during the day. Management agreed to try the scheme for a limited time. A listing of the number of subassemblies produced per week before and after the new work environment for each employee follows. Production after Production Installing Lighting, Music, etc. Past Production after Production Installing Lighting, Music, etc. Past Record Employee Employee WWJ Record JD 23 33 21 25 SB 26 26 OP 25 22 MD 24 30 CD 21 23 RCF 17 25 PA 16 17 MF 20 19 RRT 20 15 24 22 AT 17 9 UHH IB 30 29 QQ 23 30 E Click here for the Excel Data File Using the Wilcoxon signed-rank test, determine whether the suggested changes are worthwhile. Assume the level of significance is 0.05. a. State the null and alternate hypotheses. Ho H:
b. State the decision rule. Use the 0.05 significance level.
Reject Ho if T s
c. Compute T and arrive at a decision.
Ho-
T =
Transcribed Image Text:b. State the decision rule. Use the 0.05 significance level. Reject Ho if T s c. Compute T and arrive at a decision. Ho- T =
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