Question 1Select one answer. 10 pointsAt the beginning of the semester, students who registered for a statistics course were randomly assigned to two sections, each taught by a different instructor. At the end of the semester, we would like to test whether there are differences in performance on the final exam between the two sections.matched pairs t-testtwo-sample t-testANOVAchi-squared test for independenceinference for regressionQuestion 2Select one answer. 10 pointsAdvertising researchers claim that the power of curiosity can be harnessed to design an effective Internet advertising strategy that results in a better evaluation of the advertised product. They develop six advertising texts with varying amounts of “curiosity” triggers. College students are randomly assigned to one of the six versions of the advertisement text and their evaluation score of the advertised product is recorded. matched pairs t-testtwo-sample t-testANOVAchi-squared test for independenceinference for regressionQuestion 3Select one answer. 10 pointsA physical therapy researcher was interested in determining the impact of two different exercises. The investigator suspected that the two exercises produced a different level of activity in the muscle. Each of 16 subjects performed both exercise 1 and exercise 2, and the results are shown (for each subject, the order of the exercises was randomly assigned and sufficient rest time was provided between the two exercises). matched pairs t-testtwo-sample t-testANOVAchi-squared test for independenceinference for regressionQuestion 4Select one answer. 10 pointsWe select random samples from several racial categories (Caucasian, African-American, Hispanic, Asian-American) to determine if there is a difference in overall mean earnings among the groups.matched pairs t-testtwo-sample t-testANOVAchi-squared test for independenceinference for regressionQuestion 5Select one answer. 10 pointsWe want to test for a relationship between race and marital status (married/never married/divorced/widowed).matched pairs t-testtwo-sample t-testANOVAchi-squared test for independenceinference for regressionThe next three questions refer to the following information:A researcher wants to explore the relationship between the following two variables, Weight 1 and Weight 2.For each question below, choose the most appropriate inference method to analyze these data, under the given scenarios.Question 6Select one answer. 10 pointsSuppose that Weight 1 is the weight (in pounds) of a sample of five individuals before beginning a weight-loss diet, and Weight 2 is the weight in (pounds) of the same five individuals after the diet. If we would like to test the effectiveness of the diet, which of the following is the appropriate inference method?matched pairstwo independent samplesinference for regressionQuestion 7Select one answer. 10 pointsIn preparing for a balsa wood bridge challenge, students weighed (in g) a random sample of five balsa wood designs and recorded these data as Weight 1. They also recorded the maximum weight (in kg) that the bridge could support. If the students want to know if there is an association between the weight of the bridge (in g) and the maximum weight supported (in kg), which of the following is the appropriate inference method?matched pairstwo independent samplesinference for regressionQuestion 8Select one answer. 10 pointsIf Weight 1 is the weight (in pounds) of a random sample of five men who were accepted as models, and Weight 2 is the weight (in pounds) of a random sample of five men who were rejected as models, which of the following is the appropriate inference method?matched pairstwo independent samplesinference for regression

 

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Inferior Company, which is based on South Carolina, makes and sells products that are poorly made. Jack, who is a resident of North Carolina, buys an Inferior product and suffers an injury through its use. The diversity of citizenship between these parties means thatAnswer :a-federal and state courts have concurrent jurisdiction.d-federal courts have exclusive jurisdiction.c-no court has jurisdiction.d-state courts have exclusive jurisdiction.

Inferior Company, which is based on South Carolina, makes and sells productsthat are poorly made. Jack, who is a resident of North Carolina, buys an Inferiorproduct and suffers an injury through…

 

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inflat %                   agg dem”               unemp %               agg. supply

8                                 520                           2                                 520

3.6                             742                           3                                 510

2                                 820                           4                                 500

1.3                             856                           5                                 490

.9                                876                           6                                 480

.6                                887                           7                                 470         

.5                                895                           8                                 460

.4                                900                           9                                 450

.3                                904                           10                              440

12.Equilibrium GDP is 520_                                                                                  13.At equilibrium GDP inflation is 8_ %

14.At equilibrium GDP unemployment is 2_ %

15.To return inflation to 2% and unemployment to 4%, _ must be subtracted from each agg demand level.

16. For +10 points write the equation relating unemployment to aggregate supply.

17. for +30 points write the equation relating inflation to unemployment

 

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INFLATION Due to a recession, expected inflation this year is only 3.25%. However, the inflation rate in Year 2 and thereafter is expected to be constant at some level above 3.25%. Assume that the expectations theory holds and the real risk-free rate (r*) is 2.5%. If the yield on 3-year Treasury bonds equals the 1-year yield plus 1.5%, what inflation rate is expected after Year 1?

 

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