Problem #1 on your calculation sheet The Academic Scholars committee is currently having a fundraising campaign. Their goal is to obtain an average of $20.00 from each contributor. The first data set you worked with (Problem #1) consists of contributions given to the alumni foundation so far. The foundation wants to determine whether the contributions they have received so far are significantly different from their goal of $20.00. What value(s) does the null hypothesis predict for the mean?

The average age for licensed drivers in a certain county is 42.6 years with a standard deviation of 12.2. years. A researcher obtained a sample of 25 drivers who received parking tickets and computed the average age of these drivers. Which test should he use to determine if the average age of the drivers who received parking tickets is significantly different from the average age of drivers in the entire county?

Please scan the calculation sheet and upload to Blackboard (link can be found in the Exam 2 folder). This is just a placeholder to assign points.

You are interested in determining whether the grades of current high school students in Grand Forks are different than the grades of past students. The state board of education is able to tell you that the mean GPA for students graduating in Grand Forks in the past 40 years is 2.82, but that is all the information they have. You randomly select 90 students who are about to graduate and compute their mean GPA. Which statistical test will tell you if there is a difference in GPA between the current students and students from the past 40 years?

Did you begin a Yuja Proctoring Session? If not, start one now before proceeding to the rest of the test. 

Based on the z-score you reported in your previous answer, what is the probability of getting a score of 17 or lower?

Which of the following are advantages to a repeated-measures design?

In a within-subjects design participants __________.

Problem #3 on your calculation sheet. What value did you calculate for the related samples t-test? Report this as an ABSOLUTE VALUE, with no plus or minus sign. (You may have gotten a positive or negative value, depending on how you subtracted the conditions…although, you should generally subtract the pre-test from the post-test)

Based on your previous answer regarding central tendency, what is the average score for Bob’s employees?