Final test (SB)28.Which of the following statements is correct? A. A parameter is a measure that is calculated from a sample.B.Statistics is the science of collecting, organizing, analyzing, interpreting, and presenting data.C. For day-to-day business data analysis, most firms rely on a large staff of expert statisticians.D. A statistical test result that is significant also has practical importance.Check definitions (parameter, sample, statistics, pitfalls) and uses of statistics.
Final test (SB)29.Which is least likelyto be an application where statistics will be useful? Policy wording is probably up to writers.
Final test (SB)30.Because 25 percent of the students in my morning statistics class watch eight or morehours of television a week, I conclude that 25 percent of all students at the university watch eight or more hours of television a week. The most important logical weakness of this conclusion would be: Generalizing from a nonrandom sample is risky.
Final test (SB)31.Which of the following is nota characteristic of an ideal statistician? There is an unattractive name for a consultant who always agrees with the client.
Final test (SB)32.Which of the following statements is nottrue? A. Statistics helps refine theories through ongoing hypothesis testing.B. Statistics is the science of collecting, organizing, analyzing, interpreting, and presenting data.C.Estimating parameters is an important aspect of descriptive statistics.D. Statistical challenges include imperfect data and practical constraints.Estimating a population parameter is an inference.
Final test (SB)33.Which is nota practical constraint facing the business researcher or data analyst? Paid respondents may try to tell you what you want to hear.