Hi please help me answer these question:

1. To test the goodness-of-fit of observed distribution and expected distribution in a 2x3 contingency table, the number of a degree of freedom is:

a. 4

b. 2

c. 3

d. 6

2. which is the appropriate test for this hypothesis: More juniors and seniors attended the college of Business speaker events last semester than freshman and sophomores?

a. independent - sample t-test

b. paired- sample t -test

c correlation

d chi- square

3. which is the appropriate test for this hypothesis: students who take online class rate teaching effectiveness of their instructors lower than students who take in person classes. Teaching effectiveness is measured by multiple 5-point scales?

a. Independent sample test

b simple linear regression

c paired samples t test

d chi square

Question 41 1 pts A question such as: "Have you ever smoked e-cigarettes?_ Yes No," when followed by a question such as: "How often do you smoke e-cigarettes?" is an example of what type of question? O leading O double-barreled O anchoring O filter Question 42 1 pts Where do you rank academically in your high school graduation class? 1st quarter 2nd quarter 3rd quarter 4 quarter is a(n) question. O loaded O simple-dichotomy O leading O open-ended responseQuestion 71 The formula given below represents the method for calculating the O a O Z-test O x2 test OF-testQuestion 33 An experiment that studies effects of the type of social media and the level of interactivity of the design on the number of minutes users spend on the social media is an example of which type of experimental design? factorial experimental design between-subjects design O within-subjects design O basic experimental design uestion 34 MacBook Promarket test-market Question 30 1 pts In an experiment that studies the effects of the type of social media and the level of interactivity of the design on the number of minutes users spend on the social media, the dependent variable is O attitude toward social media number of minutes spent on social media O level of interactivity of the design O type of social media uestion 31 f the following are experimental design elements EXCEPT for the MacBook Pro