Question: 1. We use ( confidence intervals / hypothesis tests ) to estimate the value of the population parameter. a. hypothesis tests b. confidence intervals 4.

1. We use ( confidence intervals / hypothesis tests ) to estimate the value of the population parameter.

a. hypothesis tests

b. confidence intervals

4. There cannot be causation without ( confounding variables / association ).

a. association

b. confounding variables

5. Random assignment helps eliminate ( biases / confounding variables).

a. confounding variables

b. biases

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