At a community college, the mathematics department has been experimenting with four different delivery mechanisms for content
Question:
(a) What is the response variable in this study? Is it quantitative or qualitative?
(b) What is the factor in this study? How many levels does it have?
(c) Write the null and alternative hypotheses.
(d) State the requirements that must be satisfied to use the one-way ANOVA procedure.
(e) Assuming the requirements stated in part (d) are satisfied, use the following StatCrunch output to test the hypothesis of equal means at the a = 0.05 level of significance.
(f) Shown are side-by-side boxplots drawn in StatCrunch of each delivery method. Do these support the results obtained in part (e)?
(g) Interpret the P-value.
(h) Verify the residuals are normally distributed.
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Related Book For
Statistics Informed Decisions Using Data
ISBN: 9780134133539
5th Edition
Authors: Michael Sullivan III
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