A principle component can be defined as
where the b values
a. explain as much variance in the correlation matrix as possible
b. maximize
c. minimize
d. are orthogonal
Question 2A test of a hypothesis to determine if two groups differ with respect to the scores on one variable is called a(n) ______.
Fill in the blank(s) with correct word
Question 3Which of the following refers to mail, which can include text and graphics, that is sent electronically to anywhere in the world over the Internet?
a. email c. eblogs
b. ecatalogs d. emagazines
Question 4Which of the following best describes order cycle time?
a. The total lifespan of a product ranging from production to consumption
b. The total time that passes between the placement of an order and the receipt of the merchandise
c. The total time spent in transit by an ordered product
d. The period between departure and arrival of the carrier
Question 5A(n) _____ survey is a self-administered questionnaire posted on a website.
a. e-mail
b. kiosk
c. Internet
d. electronic
Question 6A problem in developing a scale is in weighting the variables being combined in the scale. _______________ can do this by using the _______________ as the weights.
a. factor analysis, factor loadings
b. cluster analysis, centroid distances
c. multiple regression, coefficients of the regression
d. discriminant analysis, coefficients of the DF
Question 7Practically speaking, what is the first thing a researcher should do when interpreting ANOVA results?
a. examine the actual means for each group
b. determine the between-groups variance
c. examine the total variance
d. check whether or not the overall model F is significant
Question 8Cell phones have caused all of the following except
a. more mobile lifestyles c. more sharing of personal lives in public
b. greater incidents of tardiness d. None of the above
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