Question 17 2 Points In a research study, background noise was measured, and designated as follows: loud noise condition as condition 1, the quiet noise condition as condition 2, and the no-noise condition as condition 3. What type of data is being used for the designation? nominal B ordinal C ratio D interval Section B Short Essay Questions (30 Marks): Answer all questions. In your answers below, it is not enough to state the results. You need to justify your steps and also to interpret the results for full credit. Question 18 2 Points When the equal population variation is not justified in performing the t-test for the difference in means, what is another test that is recommended? A Z-test B Welch's t-test C F-test D Chi-Square Test (?Question 19 When the responses in the research are based on counts, what regression model would be most appropriate for the task? Multiple Regression Analysis Time Series Question 20 Describe a contingency table as related to statistical modelling. Use the editor to format your