Statistikk, metode og dataanalyse 2017

  1. When should Market Research NOT be conducted?




    C) If decisions need to be taken in an instant
  2. In which one of the following situations would you conduct exploratory research?




    C) When you want to formulate problems precisely
  3. What is the purpose of a Research Report?




    A) All of these
  4. Which of the following alternatives is an example of quantitative data?




    D) Time
  5. "Does the variable reflect what you want to measure? That is: does it make sense?"
    Which type of validity are we referring to?




    D) Face validity
  6. Please consider the following question: "Are you satisfied with the performance and reliability of your iphone?
    This is an example of _____ in questionnaire design.




    D) Double-barreled questions
  7. Which of the following alternatives is not a measure of dispersion?




    B) Median
  8. Which of the following statements is correct about hypothesis testing:
    I. Hypothesis testing is a procedure by which claims about populations are evaluated on the basis of sample
    statistics.
    II. Hypothesis testing starts with the formulation of the null and alternative hypotheses.
    III. When you reject a null hypothesis, you can be fully certain that this was the correct decision.




    B) I and II
  9. Which of the following assumptions should be fulfilled to conduct ANOVA analysis?




    B) The population variances in each group are identical
  10. Which of the following statements explains characteristics of the F-test statistic?




    A) All of these
  11. A key difference between practitioners and academics that are involved in market research is that managers/clients judge practitioners while reviewers judge academics.

    True or False?
    True
  12. "To identify which of the three test package designs has the greatest impact on consumer attitudes and purchase intentions" is an example of a research question

    True or False?
    False
  13. Bait-and-switch is when a bid is submitted at a legitimate price; however, once the contract is signed, the research company identifies some means of upgrading the study to a more expensive design.

    True or False?
    True
  14. A number of potential ethical situations could occur when conducting research studies. However, while researchers have legal and professional responsibilities regarding their respondents, they do not have ethical
    responsibilities when elaborating the research report.

    True or False?
    False
  15. A case consists of all the observed variables that belong to an object such as customer, a company or a country.

    True or False?
    True
  16. Primary data tends to be cheaper, easier to collect and sometimes it is more accurate.

    True or False?
    False
  17. The most important aspect of sampling is that the sample is representative of the population.

    True or False?
    True
  18. In experimental research, to examine the influence of the dependent variable(s) on the independent variable(s), treatments or stimuli are administered to the participants.

    True or False?
    True
  19. The mode is calculated by ranking the data and taking the one that comes right in the middle.

    True or False?
    False
  20. A Type II error occurs when a false null hypothesis is not rejected

    True or False?
    True
  21. The difference between the test statistic (p-value) and the critical value α (significance level) is that the p-value is calculated using the sample and the significance level is set by the researcher before the test outcome is
    observed

    True or False?
    True
  22. Positive correlation is present when high values of the first variable are associated with low values of the second variable.

    True or False?
    False
  23. A researcher wanted to examine how individuals' political affiliation would influence their opinion of a new tax legislation. In the survey, 120 individuals were identified as conservative and 80 as liberal. A question on the survey asked whether the respondents "agreed", "disagreed" or had "no opinion" about the tax law. The researcher believes a Chi-Square is the appropriate test for this analysis.

    True or False?
    True
  24. The graph shows an example of data that has a negatively skewed distribution.

    Image Upload 1
    False
  25. One way of validating the results of regression analysis is to randomly split the sample into two groups consisting of 70% and 30% of the observations. Then we estimate the regression model on both samples and check if the parameter estimates and significance levels are about the same.

    True or False?
    True
  26. Bill conducted a multiple regression analysis to answer his research question. The SPSS output for multiple regression analysis is shown in the attachment.
    Based on the results, which of the following statements is correct?


    Image Upload 2



    C) The value of R-squared = 0.764 shows that the independent variables together account for 76.4 percent of the variance in the dependent variable.
  27. The value of F = 244.774 and p < 0.05, indicate that the dependent variable explains a significant amount of the changes in the independent variables. True or False?

    Image Upload 3
    True
  28. Based on the coefficient results, which of the following statements is correct?
    Image Upload 4




    C) All B coefficients are positive.
  29. If the number of red lights increases by 1, then the time that Bill takes to get to work would increase by 1.335
    minutes

    True or false?
    Image Upload 5
    True
  30. To reduce the time it takes Bill to get to work, he has to identify the independent variable that has the strongest relationship to the dependent variable.
    Image Upload 6

    Which independent variable is this one?



    B) Trains
  31. One of the data requirements for regression analysis is that there is no collinearity present. Based on the
    results, is collinearity a problem between the variables?




    C) No, the tolerance value is above 0.10 and the VIF value is below 10.
Author
linnea
ID
340465
Card Set
Statistikk, metode og dataanalyse 2017
Description
Statistikk eksamen 2017
Updated