Statistics assignment, Applied Statistics

To compare three brands of computer keyboards, four data entry specialists were randomly selected. Each specialist used all three keyboards to enter the same kind of text material for 10 minutes, and the number of words entered per minute was recorded. The data obtained are given in the table below.  Using these data, SST = 392.6667, SSB = 143.54833, and SSE = 2.6667.

                                                      Keyboard Brand

       Data Entry Specialist               A       B       C

                   1                                     77     67     63

                   2                                    71     62     59

                   3                                    74     63     59

                   4                                     67     57     54    

 

Use Tukey simultaneous 95 per cent confidence intervals to make pairwise comparisons of the keyboard brand effects on the mean number of words entered per minute.  Which keyboard brand maximizes the mean number of words entered per minute?

Posted Date: 3/8/2013 4:07:20 AM | Location : United States







Related Discussions:- Statistics assignment, Assignment Help, Ask Question on Statistics assignment, Get Answer, Expert's Help, Statistics assignment Discussions

Write discussion on Statistics assignment
Your posts are moderated
Related Questions
Consider the sample of 60 package design ratings given in the table below.                                    A Sample of Package Design Ratings                 (Composite S

The following data on calcium content of wheat are consistent with summary quantities that appeared in the article “Mineral Contents of Cereal Grains as Affected by Storage and Ins

Accelerated Failure Time Model A basic model for the data comprising of survival times, in which the explanatory variables measured on an individual are supposed to act multipli

CALCULATE THE PERCENTAGE OF REFUNDS EXPECTED TO EXCEED $1000 UNDER THE CURRENT WITHHOLDING GUIDELINES

Q. Find the inverse Laplace transform of Y (s) = s-4/s 2 + 4s + 13 +3s+5/s 2 - 2s -3. Q. Use the Laplace transform to solve the initial value problem y''+ y = cos(3t), y(0) =

Index Number Meaning and Definitions of Index Number The index numbers are the special type of averages which are presented in percentages and computed on certain base.

What is an example of a real life situation when I would use each of these test

DISCUSS THE METHODS OF MEASURING TREND

Consider an MBA program as a processing network where the flow unit consists of a student in the program.  Suppose the organizations that hire and promote MBAs are considered to be

Write down the symbols and unit for the following: mass, molar mass, molar and molarity Write down the relationship between mass and molar mass and show that the units match.