QNT 561 Final Exam Latest Assignments

c) multicollinearity
d) autocorrelation
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27. Sam's Club installed self-checkout stations that can track not only member's purchases
but also packaging problems, as the system uses universal product codes to match the item
the shopper has in their cart with its price and inventory level in the store, generating a
spreadsheet style report for the researcher. If you consider the scanner as the tool for
collecting data for Sam's researchers, they are doing data entry by ____.
a) spreadsheet
b) Optical Character Recognition
c) Field editing
d) Voice recognition
28. The weekly incomes of a large group of executives are normally distributed with a mean
of $2,000 and a standard deviation of $100. What is the z-score for an income of $2,100?
a) 1.683
b) 0.90
c) 2.00
d) 1.00
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29. A ranking scale is a scale that _____.
a) scores an object without making a direct comparison to another object
b) groups participants
c) groups concepts according to specific criteria
d) scores an object by making a comparison and determining order among two or more
objects
30. What is the interpretation of a 96% confidence level?
a) The interval contains 96% of all sample means.
b) Approximately 96 out of 100 such intervals would include the true value of the
population parameter.