Module 16 quiz

* Question 1
10 out of 10 points | | | It is a well known fact that talking on a cell phone impairs a driver more than talking to a person sitting in the passenger seat. This is because a passenger can see the road and will stop talking during dangerous driving conditions. We want to know if this is only true for passengers that have experience driving. We recruit 40 participants to be a passenger during a driving simulation and record how many words they say during "dangerous" scenarios. All 20 participants are 18, but only half of them have a driver's license. What statistical test would we use to compare the number or words spoken for people with and without licenses. | | | | | Selected Answer: | Independent samples t test | Answers: | Dependent samples t test | | Independent samples t test | | | | | * Question 2
10 out of 10 points | | | We want to know how having kids affects happiness. We surveyed 100 couples that were expecting a child in the next three months. We went back and surveyed those same 100 couples one year later. What test would we use to compare their previous scores with their current scores? | | | | | Selected Answer: | Dependent samples | Answers: | Dependent samples | | Independent samples | | | | | * Question 3
10 out of 10 points | | | We are doing a dependent samples t-test and we're in the middle of step 4 of our null hypothesis test. We determined that D̅ = .25, SD̅ = .05, n = 9Calculate tD/ SD= Answer | | | | | Selected Answer: | 5 | Answers: | 5 | | 15.006 | | .0166 | | None of the above | | | | | * Question 4
10 out of 10 points | | | I just used Excel to do a two-tailed dependent samples t-test and it gave me the output that I pasted below. How would I list the results of my t-test? Hypothesized