Question

Analyze a relationship between two variables Determine the specific function relating the two variables All of the above d. 7. Professor Stanton thought that verbal ability was a function of age. Stanton collected data on people aged 5 to 20. The analysis yielded the following equation: V-20+3A where V verbal ability and A age. Stanton was asked to predict the verbal ability of a 30 year old.Stanton should respond a. 110 b. 90 c. Extrapolation is untrustworthy d. Interpolation is untrustworthy e. 53 8. Faced with data that do not support an assumption of independence between two variables in a population, a researcher a. Immediately rejects the assumption of independence b. May attribute this discrepancy to an unrepresentative sample or reject the assumption of independence C. Needs to retest the data in order to confirm these initial findings d. Can immediately assume that the sample was unrepresentative of the population e. None of the above 9. Using simple random sampling, 200 males were drawn from a population and asked their age. The mean age for these men was 25 . The standard error for the sample was 5-we are 68% confident that the population parameter its b. C. d. e. Between 19.5 and 24.5 Between 17 and 27 Between 20 and 30 Not enough information to calculate 10. Given the following table of hypothetical data relating age to employment status, which of the following conclusion(s) can be drawn? EMPLOYMENT STATUS High 100 300 600 Medium 300 700 200 Low 800 500 100 AGE 31-40 41-50 51-60 a. There is a negative association between age and employment status b. As age increases so does the employment status. c. There is a positive association between age and employment status. . Only a and b are correct. Only b and c are correct.

Answer 1

Aa Dam VM 25±5 20 a 3O 10(c) (1 ment-slals