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Choose the correct answer:
d) Systematic sampling is probabilistic.
Quota Sampling:
All answers are true
3. The sample size required for a research project increases whenever:
b) The confidence level we need to work with increases (all else constant)
4. In a questionnaire we ask participants to indicate their age by selecting one of the following options: from 0 to 14; from 15 to 20; from 20 to 30; more than 30. The type of scale constructed is:
b) Ordinal

5. The following table presents the results of a one-mean test whereby we want to contrast whether the population mean sales (in thousands of euros) are different from 5.
d) All the answers are wrong

6. The following analysis explores the correlation between 2 quantitative variables: 1) Sales and 2) Promotional effort. What can be said about their relation?
d) All of the answers are true
7. When we find that the existence of missing values in one variable cause significant differences in the average values of another variable of our dataset:
d) None of the answers are true
8. Choose the correct answer:
a) Missing values are particularly problematic when there is a relation between the existence of missing values in different variables.
9. Choose the correct answer:
c) Univariate outliers are usually also outliers at a multivariate level

10. The following table shows the results of an ANOVA analysing the effects on marital status on income.
c) It can be stated that married individuals have a significantly higher income that divorced individuals
11. In a MANOVA we require that:
d) All of the answers are true