The following question is based on scenario 2:Researchers are interested in seeing how sitting for long periodsof time can influence cardiovascular health. They ask people howmany hours per day they sit, and then they measure their bloodpressure to see if they are associated. They expect that as hoursspent sitting increases, blood pressure will also increase.

A. What is the best statistical test to use to analyze thehypothesis in scenario 2?

Structural Equation Model

z-test

Independent sample t-Test

Correlation Coefficient

Dependent sample t-Test

Factor Analysis

z-score

One-way ANOVA

B. Which of the following is the null hypothesis for scenario2?

Ho: µ₁ = µ₂ =µ₃

H₀: X = µ

rxy = 0

Scenario 3. A 5^th grade school teacher believes thatshe has an exceptionally gifted group of students in her class thisyear. She learns that the national average score on the5^th grade annual test is 150, with a standard deviationof 30. She wants to compare her student’s scores to the nationalaverage.

A. What is the null hypothesis for scenario 3?

HO: µ1 = µ2

HO: µ1 = µ2 =µ3

r = 0

H0: X = µ

B. What is the alternative hypothesis for scenario 3?

H1: m1 < m2

r ≠ 0

H1: X1 ≠ X2 ≠ X3

H1: X ≠ µ

C. What is the appropriate test statistic to use for scenario3?

correlation coefficient

regression

z-test

dependent samples t-test

One-way ANOVA

independent samples t-test