Scenario#5 Researchers are interested if quiz scores can predict class scores. They gather data on each of these variables from 19 students and fit a linear regression model to explain the variance.

Research Question#5: Can the quiz score averages be used to predict final scores in the population of courses?

Given: Sums of Squares Model (SS_M =40) Sums of Squares Error (SS_E = 125), alpha=0.05

Step 1: State the Hypotheses.

Null Hypothesis:

In symbolic form:

Alternative Hypothesis:

In symbolic form:

Step 2: Find the Critical Value.

Row df=

Column df =

Use the F table

F critical =

Step 3: Calculate the Test Statistic.

	SS	df	MS	F
Model
Error