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Problem Set 3.14: Independent Samples t Test
Criterion: Identify IV, DV, and hypotheses, and evaluate the null hypothesis for an independent
samples t test.
Data: Use the information from Problem Set 3.13.
Instruction: Complete the following:
a. Identify the IV and DV in this study.
b. State the null hypothesis and the directional (one-tailed) alternative hypothesis.
c. Can you reject the null hypothesis at a = .05? Explain why or why not.

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IV: whether or not the students are using the embouchure strengthening cream DV: amount of time spent... View the full answer

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