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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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