The assumptions of multiple regression include all of the following except:
a. The independent variable must be a valid predictor of the dependent variable.
b. Mixed costs cannot be separated into fixed and variable components.
c. The circumstances of the regression model remain constant.
d. Regression analysis must be used within a relevant range of activity.
b
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Which of the following is true about a nonprobability sample?
A) The hierarchical sampling method is used to select people who appear most willing to participate. B) Representativeness is the key determinant of who participates. C) A researcher uses personal judgment to select participants. D) Every member of the population is included in the sample. E) Each member of the population has some chance of being included in the sample.
What is meant by the phrase, the triple bottom line?
a. Profits, people and planet, which captures the way a company incorporates the two domains of corporate social responsibility (social and environmental issues) into its business decisions. b. Product, price, and promotion, which captures the profit impact from the major decision variables in the marketing mix. c. Financial, managerial, and environmental accounting methods. d. The use of marketing metrics to capture customer satisfaction, loyalty, and lifetime value. e. Sustainability, social marketing, and societal impacts.
A population of size 1,000 has a proportion of 0.5. Therefore, the proportion and the standard deviation of the sample proportion for samples of size 100 are
A. 500 and 0.047. B. 500 and 0.050. C. 0.5 and 0.047. D. 0.5 and 0.050.
Which of the following acts regulates the secondary market?
A) The Securities Act of 1933 B) The Gramm-Leach-Bliley Act C) The Securities Exchange Act of 1934 D) The Glass-Steagall Act