University of South Carolina

Increasing the sample size will usually yield a _______ confidence interval - Correct Ans-narrower Increasing the confidence level will yield a _____ confidence interval - Correct Ans-wider What does it mean if the R-square for a regression is 0.346 and the adjusted R-square is 0.271? - Correct Ans-There is a weak predictor in the model. Standard error is interpreted with the _____ variable - Correct Ans-response If the p-value for an F test is significant, it means that... - Correct...

What is the first step in processing you data for a time series analysis in R? - make all data factors - make date variable a factor with the factor() function -make date variable be recognized as a date in R with the as.Date() function - Correct Ans-make date variable be recognized as a date in R with the as.Date() function How does R store date variables? -as factors -as characters -as the number of days relative to Jan 1, 1970 - Correct Ans-as the number of days relative to Jan 1, 19...

putting in a dataset - Correct Ans-data<-c(81,85,93,93,99,76,75,84,78,84,81,82,89,81,96,82,74,70,84,86,80,70,131,75,88,102,115,89,82,79,106) length(data) - Correct Ans-tells you how may entries are in your vector sort(data) - Correct Ans-puts data smallest to largest summary(data) - Correct Ans-returns the five number summary and the sample mean mean(data) sd(data) sum(data) - Correct Ans-sample mean sample standard deviation adds all the elements of the vector seq(1,100,1)...

PRINCIPLES OF MARKETING RESEARCH MKTG 352 EXAM ( correctly solved) -USC

what are the four levels of measurement? - ANS: nominal, ordinal, interval, ratio (NOIR) which levels of measurement represent qualitative data? - ANS: nominal and ordinal which levels of measurement represent quantitative data? - ANS: interval and ratio what central tendency measure is most appropriate for nominal data? - ANS: mode what central tendency measure is most appropriate for ordinal data? - ANS: median - could calculate mode as well what central tendency measure is mos...

While filling out a survey, a respondent comes across a statement that reads "This survey is almost complete. There are only a few questions left." This statement is an example of a(n) - ANS: transition phrase. On a survey, a student comes across a question that asks "To what extent did you find marketing and accounting courses useful?" This question is (most closely) an example of a(n) - ANS: double-barreled question. ________ are open-ended questions that enable respondents t...

Common mistakes people make while wording the questions/statements in questionnaires - ANS: Double barreled questions Ambiguous questions Difficult to answer questions Difficult to understand questions Why do we sample? - ANS: Studying the entire population (census) might not be feasible • Time constraints • Money constraints How can sample be useful? - ANS: Sample represents information about the target population This information can allow us to make judgements about t...

Measuring service quality perceptions by gathering online consumer reviews on is - ANS: B) Secondary Data Modern Office Designs, Inc (MOD), manufactures a broad line of office equipment and supplies. Through its sales force, it sells its products to a variety of organizations. Despite heavy growth in industry sales, MOD's profits have declined during the past two years, much to the concern of MOD executives. What is the appropriate research type? - ANS: Exploratory Research Reason:...

Why is good positioning important? - Ans: clearly reflects a brand's competitive edge (I.e. competitive advantage, differentiating proposition) AND motivates consumers to action and purpose What is Brand Loyalty? - Ans: It is a consumer's commitment to continuing using or advocating a brand, as demonstrated not only by repeat purchases, but also by other positive brand behaviors (word of mouth advocacy, brand identification) Why is Brand Loyalty Important? - Ans: it is much cheaper t...

This chapter goes in depth on the genetic transfer process.