(a) One friend believes it means that " 95%95% of all Torrey pine needles have lengths between 2525 and 2929 cm." Is that right? Select the correct explanation. Yes. The confidence interval refers to the interval containing the size of a single pine needle. No. The confidence interval refers to the population mean needle length µμ . No. The confidence interval refers to the interval containing the standard deviation. Yes. The confidence interval refers to the range of individual needle lengths.

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true