Kelsey did the following division problem. Her teacher says that the quotient she found is wrong. − 2 5 6 ÷ 1 1 3 − 17 6 ÷ 4 3 − 6 17 • 3 4 − 6 × 3 17 × 4 − 18 68 − 9 34 A. Identify what Kelsey did wrong in her calculations. B. Find the correct quotient, showing all of your calculations.

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.