Suppose you wish to determine if students in the College of Public Health have higher GPAs than that of students in the college of Medicine at USF.  If you have a group of 100 students and randomly assign which college each student should enroll in and track their academic progress until they graduate, then compare their GPA’s what kind of study was conducted?

The Central Limit Theorem is important in Statistics because it allows us to use the normal distribution to make inferences concerning the population mean:

Select the appropriate null and alternative hypothesis for the following research question: Do people enjoy playing video games less than playing sports? phat1 = proportion of people who enjoy playing video games more than sports phat2 = proportion of people who enjoy playing sports more than video games

Suppose you wish to compare the mean GPA of students in the College of Public Health to the mean GPA of students in the college of Medicine at USF.  If you have a list of all the students the fit into your population of interest and randomly select 100 students to be apart of your study, what type of sampling are you doing?

Using the following information select the appropriate interpretation for the correlation coefficient: Variables being compared are age in years and annual salary. r = +0.12

Conduct a hypothesis test based on the following information using a significance level of 1%: Research Question: Are people running less than 20.72 miles per week? Population standard deviation was NOT KNOWN Test statistic = -1.79 Sample size = 31

Which of the following statements are true regarding Type I or Type II errors?

Using the information below calculate the predicted value for Y for the given value of X. Y (Dependent Variable) = Grade Point Average X (Independent Variable) = Average number of hours spent using electronic devices for entertainment purposes   yhat = 4 – 0.125*X   On average what would a person’s Grade Point Average be if they spend on average 4 hours using electronic devices for entertainment purposes (round your answer to 4 decimal places)?

Which of the following assumptions concerning simple regression models is stated incorrectly?

A researcher would like to study BMI levels in adults 20-40 years of age. She selected 9 patients and found their BMI values to be: 18, 29, 36, 22, 25, 27, 26, 30, 37The standard deviation of BMI levels of this group of patients is