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Q5. Specify for each of the following scenarios whether we should use a one-sample t-test, an independent t test, or a paired test (6 pts):
Q5. Specify for each of the following scenarios whether we should use a one-sample t-test, an independent t test, or a paired test (6 pts):
- A professor assessed the math scores of a group of students before and after tutoring.
- An epidemiologist compared the efficacy of Moderna and Pfizer vaccines on the same group of individuals
- A researcher assessed whether or not JMU students are meeting the national recommendations of fruits and veggies intake.
- The comparison of the Epidemiology midterm scores between Dr. Jehi'sand Dr. Merrel's sections.
- A study conducted to see if the average GRE scores of a sample of students at Loma Linda University is similar to that of the general population of students in California.
- A study comparing the association between Covid-19 confinement (independent variable) and the physical activity level between males and females
Q6. Complete the following table (5 pts):
Variable | Continuous vs Discrete | Quantitative vs. Qualitative | Nominal vs. Ordinal vs. Interval vs. Ratio |
SAT score (200-800) | |||
Days in a week | |||
Sexual orientation | |||
Credit score (300-850) | |||
Score on stats test (0-100) |
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