Which of the following is an explanatory hypothesis?
A. Young women purchase fewer meats than women who are 35 years of age or older.
B. Sales of vegetarian foods vary by season.
C. An increase in family income leads to an increase in the percentage of income spent
on housing.
D. Real estate investment trusts (REITs) experienced a record level of profitability in
2004.
E. People in the South tend to rate the President more favorably than do people in the
North.
Departmental budgeting means that research budgets are determined by _____.
A. allocating the same amount to research that competing firms allocate
B. the contributions of various departments to fund department-specific projects
C. evaluating projects on a case-by-case basis
D. taking a fixed percentage of some criterion
E. allocating whatever is left after covering other required expenditures
Principal component analysis describes _____.
A. a method for identifying the variables in multidimensional scaling