CENGAGE | MINDTAP Q Search this course Complete: Chapter 8 Homework Standard Normal Durrbution o CO.AT The critical region is The 2-score boundaries for an alpha level a = 0.001 are: 2 2.58 and 2 - -2.58 z. 329 and 2 -3.29 z. 1,96 and 2- -1.96 Suppose that the calculated z statistic for a particular hypothesis test is 4.16 and the alpha is 0,001. This z statistic is the critical region. Therefore, the researcher reject the null hypothesis, and she_ . conclude the alternative hypothesis is probably correct. Grade It Now Save & Continue Continue without savingte: Chapter 8 Homework in a researcher sets a = .05, she is willing to accept a or less that she rejects the null hypothesis when it is ally true. the following Distributions tool to identify the boundaries that separate the extreme samples from the samples that are more obviously consistent the null hypothesis. Assume the null hypothesis is nondirectional, meaning that the critical region is split across both tails of the distribution. 2-score boundaries at an alpha level o - ,05 are: x- 3,29 and 2 - -3.29 2 2.58 and 2 -2.58 2- 1.96 and a = -1.96 Live the tool to identify the 2-score boundaries, click on the icon with two orange Ines, and slide the orange lines until the area in the critical region uals the alpha level. Remember that the probability will need to be split between the two tails. use the tool to help you evaluate the hypothesis, click on the icon with the purple line, place the two orange lines on the critical values, and then ace the purple Time on the : statistic. Standard Normal Distribution the 200 7