Chapter Eleven

1. Dolly is a research assistant working for you at the tech company. Dolly is in charge of figuring out whether or not people who own products made by two tech giants, Cherry and Openings, has any effect on their likelihood to purchase your company’s new tablet. Dolly runs an independent-samples t-test and sends you the output. The results are the following: t(48) = 61.47, p < .05, η² = .70. (Hint: η² means ‘eta squared’) (4pts)

1. What is the null hypothesis for this study?

1. What could Dolly’s research hypothesis have been for this study?

1. What did Dolly find, if anything? Interpret all of the results she delivered to you.

1. Has Dolly left out any important information? If so, what is that information?

2. Discuss the “setup” for an independent-samples t-test, or the necessary aspects for running a t­-test. Specifically: (2pts)

2. The independent variable (IV) should be (i.e. nominal/ordinal/interval/ratio):

2. The dependent variable (DV) should be (i.e. nominal/ordinal/interval/ratio):

Chapter Thirteen

3. Discuss the “setup” for an one-way ANOVA, or the necessary aspects for running an one-way ANOVA. Specifically (2pt)
   1. The independent variable (IV) should be (i.e. nominal/ordinal/interval/ratio)? And how many groups/levels must be present?:

3. The dependent variable (DV) should be (i.e. nominal/ordinal/interval/ratio):

4. What are post hoc tests? Why do you we have to use them for ANOVA tests?(2 pts)

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