2) The extent to which the results of any market research outcome can be generalized to the population it is meant to characterize is known as predictability b repeatability external validity internal validity reliability
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- A teacher who is trying to determine if the evidence supports the fact that a new method of teaching economics is more effective than a traditional one will conduct a _____ test. a. multi-tailed b. one-tailed c. paired d. two-tailedA school newspaper is going to investigate students’perceptions regarding the campus security guards. They plan to survey 100 students at the school. The editor-in-chief tells his staff that he is worried about undercov-erage bias created by chronically truant students. His concern is. . .a) unwarranted because some students may refuse toparticipate and that is inevitable.b) justified because chronically truant students will be difficult to survey and will probably have a dispropor-tionately negative view of the security guards. c) unwarranted because students who cannot be sur-veyed are not a part of the population of interest. d) unwarranted because students who cannot be sur-veyed are not a part of the sample. e) justified because people need to be forced to answer asurvey in order for the results to be valid.determine the null & alternative hypothesis + claim. as well as the test statistic and the tail of the distibution.
- Assuming that a study on risk management practices is to be conducted among 4,488 entrepreneurs wherein 2,244 are college graduates, 1,346 are high school graduates and the remaining 898 are elementary graduatesFurthermore 1,795 of them are into food business, 1,571 are into merchandising or trading business and the others 1,122 are into services business. REQUIRED: Please make a close ended question to be put in the questionnaire about the variables above.Country Financial, a financial services company, uses surveys of adults age 18 and older todetermine if personal financial fitness is changing over time (Usa today, April 4, 2012). InFebruary 2012, a sample of 1000 adults showed 410 indicating that their financial securitywas more than fair. In February 2010, a sample of 900 adults showed 315 indicating thattheir financial security was more than fair.a. State the hypotheses that can be used to test for a significant difference between thepopulation proportions for the two years.b. What is the sample proportion indicating that their financial security was more thanfair in 2012? In 2010?c. Conduct the hypothesis test and compute the p-value. At a .05 level of significance,what is your conclusion?Country Financial, a financial services company, uses surveys of adults age 18 and older todetermine if personal financial fitness is changing over time (Usa today, April 4, 2012). InFebruary 2012, a sample of 1000 adults showed 410 indicating that their financial securitywas more than fair. In February 2010, a sample of 900 adults showed 315 indicating thattheir financial security was more than fair.a. State the hypotheses that can be used to test for a significant difference between thepopulation proportions for the two years.
- Country Financial, a financial services company, uses surveys of adults age 18 and older todetermine if personal financial fitness is changing over time (Usa today, April 4, 2012). InFebruary 2012, a sample of 1000 adults showed 410 indicating that their financial securitywas more than fair. In February 2010, a sample of 900 adults showed 315 indicating thattheir financial security was more than fair.a. State the hypotheses that can be used to test for a significant difference between thepopulation proportions for the two years.b. What is the sample proportion indicating that their financial security was more thanfair in 2012? In 2010?Country Financial, a financial services company, uses surveys of adults age 18 and older todetermine if personal financial fitness is changing over time (Usa today, April 4, 2012). InFebruary 2012, a sample of 1000 adults showed 410 indicating that their financial securitywas more than fair. In February 2010, a sample of 900 adults showed 315 indicating thattheir financial security was more than fair.a. State the hypotheses that can be used to test for a significant difference between thepopulation proportions for the two years.b. What is the sample proportion indicating that their financial security was more thanfair in 2012? In 2010?c. Conduct the hypothesis test and compute the p-value. At a .05 level of significance,what is your conclusion?d. What is the 95% confidence interval estimate of the difference between the twopopulation proportions?Do sit down restaurant franchises and fast food franchises differ significantly in stock price? Specifically, is the average stock price for sit-down restaurants different from the average stock price for fast food restaurants? If sit down restaurants are considered group 1 and fast food restaurants are group 2, what are the hypotheses of this scenario?
- The owner of a professional basketball team claims that the mean attendance at games is over 27,000 people and therefore the team needs a new arena. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. a) two-tailed b) left-tailed (lower-tailed) c) right-tailed (upper-tailed)If a researcher does not uncover sufficient evidence for a treatment effect in a hypothesis test, then they would include the statement of “p< .05” when writing their research report. True or FalseThe owner of a professional basketball team claims that the mean attendance at games is over 22,000 and therefore the team needs a new arena. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. left-tailed right-tailed two-tailed