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Q: Satistics ( No Answer,   2 Comments )
Question  
Subject: Satistics
Category: Miscellaneous
Asked by: nctx-ga
List Price: $20.00
Posted: 04 Sep 2005 10:58 PDT
Expires: 04 Oct 2005 10:58 PDT
Question ID: 564203
Need the following statistic question answered ASAP


Suppose a firm evaluates the productivity of the three shifts of
workers who work in their factory. Each shift?s performance is
measured based on the amount of output that is produced during the
shift ? day, evening, or swing shift. Based on these ratings presented
in the table below, produce an ANOVA table and determine if the
average amount of output for any shift is different then the others.

 

Day                  Evening                     Swing

  6                                5                                          5

                                          8                           
      8                                        6

                                          9                           
      7                                        5

                                          8                           
      7                                        7

                                          8                           
      6                                        5

                                          9                           
      7                                        6

                                          7                           
      7                                        5

                                          8                           
      8                                        5

                                          7                           
      6                                        6

                                          7                           
      5                                        5
Answer  
There is no answer at this time.

Comments  
Subject: Re: Satistics
From: _tommy_-ga on 04 Sep 2005 14:25 PDT
 
Descriptives

	N	Mean	Std. Deviation	Std. Error	95% Confidence Interval 	
					Lower Bound	Upper Bound			
1day	10	7,70	0,949	,300	7,02	8,38	6	9
2evening10	6,60	1,075	,340	5,83	7,37	5	8
3swing  10	5,50	0,707	,224	4,99	6,01	5	7
Total	30	6,60	1,276	,233	6,12	7,08	5	9


****************

Test of Homogeneity of Variances

Levene Statistic	df1	df2	Sig.
0,906	                2	27	0,416

***************
......Based on these ratings presented in the table below, produce an
ANOVA table...-->

ANOVA

	        Sum of Squares	 df	Mean Square	F	Sig.
Between Groups	24,200	         2	12,100	       14,204	,000
Within Groups	23,000	         27	0,852			
Total	        47,200	         29				


***************
Multiple Comparisons
Dependent Variable: HOW_M 
Bonferroni 
		                        Sig.	
			   
1  day	        2  evening		,039	
	        3  swing		,000	
2  evening	1  day	        	,039	
	        3  swing		,039	
3  swing	1  day	       	        ,000	
	        2  evening		,039	

*	The mean difference is significant at the .05 level.

.....and determine if the average amount of output for any shift is
different then the others...
jup, they're different - 
averages are: 
day: 7,7 
evening: 6,6
swing: 5,5

all significances are lower than 0,05 - every group's average is
significantlly different from other two...
Subject: Re: Satistics
From: nctx-ga on 04 Sep 2005 16:10 PDT
 
Thank you!

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