Question: For this exercise, I would like you to use the data given in the ‘From Data to Decision’ problem on page 151. The difference is, that I would like for you to answer the following questions instead.

1. Using the given sample data with the methods from chapter seven, show that the Dvorak configuration has significantly lower ratings than the QWERTY, indicating that the Dvorak is easier to use. [Hint: use confidence intervals]
2. Is there anything about the rating system or the choice of words for the sample that might affect the conclusion about which keyboard configuration is easier to use?
3. Write a brief report of your findings and conclusions.
4. If the Dvorak keyboard is actually easier to use, why is it not being adopted by almost everyone who now uses a keyboard? How might that change?

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Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document