Question: A7. Using the information provided, indicate which test you think should be used for each of the following situations: (a) Independent variable: normal birthweight versus

A7. Using the information provided, indicate which test you think should be used for each of the following situations:

(a) Independent variable: normal birthweight versus low birthweight infants; dependent variable: 1-minute Apgar scores (0 to 10 scale); sample size: eight infants per group

(b) Independent variable: time of measurement (before, during, and after surgery); dependent variable: heart rate; sample size: 80

(c) Independent variable: time of measurement (before, during, and after intervention); dependent variable:

did versus did not exercise daily; sample size: 30

(d) Independent variable: infertility treatment A versus infertility treatment B versus control condition; dependent variable: did versus did not become pregnant;

sample size: 180

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