# Question

(a) How are experiments and correlational designs similar in their purpose?

(b) What is the distinguishing characteristic between an experiment and a correlational study?

(b) What is the distinguishing characteristic between an experiment and a correlational study?

## Answer to relevant Questions

In the typical experiment, (a) Do we group the scores to summarize them, and if so how? (b) What are the two descriptive statistics we compute for the summary? What is the general form of the linear regression equation? Identify its component symbols. (a) Why does random sampling produce representative samples? (b) Why does random sampling produce unrepresentative samples? (a) In question 20, if a particular sample does not represent the population of average bowlers, what is your best estimate of the µ of the population it does represent? (b) Explain the logic behind this conclusion. When testing the representativeness of a sample mean, (a) What is the criterion probability? (b) What is the region of rejection? (c) What is the critical value?Post your question

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