Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 13 Oct 2017 My Price 5.00

cov- erage of light-blue interior

38.   In an experiment to see whether the amount of cov- erage of light-blue interior latex paint depends either on the brand of paint or on the brand of roller used, 1 gallon of each of four brands of paint was applied using each of three brands of roller, resulting in the following data (number of square feet covered).

 

 

 

 

1

2

3

 

1

454

446

451

 

Paint

2

446

444

447

 

Brand

3

439

442

444

 

 

4

444

437

443

 

 

 

 

 

 

40.

 
 

Roller Brand

 

 

 

 

 

 

 

 

 

 

 

 

 

a.   Construct the ANOVA table. [Hint: The compu- tations can be expedited by subtracting 400 (or any other convenient number) from each obser- vation. This does not affect the nal results.]

 

b.   State and test hypotheses appropriate for deciding whether paint brand has any effect on coverage. Use a = .05.

 

c.    Repeat part (b) for brand of roller.

 

d.   Use Tukey s method to identify signi cant dif- ferences among brands. Is there one brand that seems clearly preferable to the others?

 

e.    Check the normality and constant variance as- sumptions graphically.

 

 

 

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Maurice Tutor
(5)
Status NEW Posted 13 Oct 2017 05:10 PM My Price 5.00

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