STUDY 4

The university is building a number of active learningclassrooms and came across a chair called the Ruckus Stool that isdesigned specifically for collaborative work. The design allowsusers to comfortably use it frontward and backwards, but you areunsure whether it will work for a wide range of activities. To testthe design before ordering a large number, you ask a group ofstudents to try it for three types of lessons: i) lecture, ii)two-person group work, iii) four-person group work. Each studentonly tries a single lesson type. You ask each student to record thenumber of times they had to adjust their seating position due tophysical discomfort. You are interested in whether the lesson typeimpacts comfort in this chair.

i. Identify and rationalize the most appropriate statisticaltest.

ii. State the null and alternative hypothesis for the questionwhether there is an effect of lesson type.

iii. Identify the appropriate test statistic.

Question 5 options:

Question 6 (3 points)

For each of the following studies, identify and rationalizethe most appropriate statistical test (e.g., t-test, regressionetc.). Include the null and alternative hypotheses (be mindful ofdirection in the test), as well as the appropriate test statistic(e.g., F-score for an F-test).

STUDY 2

A geneticist was interested in the degree to which behavior isdetermined by gender. She conducted a survey of 40 random students.The scientist categorized each student as being male or female, andtheir study behavior as diligent, procrastination or reactive. Shewants to know whether study style depends on gender.

i. Identify and rationalize the most appropriate statisticaltest.

ii. State the null and alternative hypotheses in terms of therelationship between the variables.

iii. Identify the appropriate test statistic.