4. Agree or disagree (and give an explanation of your answer) with the following statement.If we take a large randomsample from a population, the population takes on a normal distribution.

5. Agree or disagree (and give an explanation of your answer) with the following statement.When we have a randomsample from a population, we use the t distribution when the sample size is small and the normal distribution when thesample size is large when testing hypotheses about the unknown population mean.

6. Define (a) a parameter; (b) a statistic.