Question: . What are the observational] experimental units? . Is this a randomized experiment or an observational study? Explain how you know. . State the two

. What are the observational] experimental units? . Is this a randomized experiment or an observational study? Explain how you know. . State the two variables measured on each unit. . Is there an explanatory/response relationship for these variables? Classify the variables in this study as categorical or quantitative. . State the null and alternative hypotheses to be investigated with this study. (You may use the symbol 7: to represent these parameters.)

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