Click here to enter text. (4) What is the standard deviation? Click here to enter text. (5) What is the standard error? Click here to enter text. (6) Using Table 02 Critical Values for the tDistribution, what is the critical value of t for a two- tailed test with an alpha level of 0.05 and the degrees of freedom in the alertness. csv data set. To nd this table in Perusall, click the Library tab at the top of the Perusall home page for the course and open the textbook. Then click the Table of Conten ts icon on the right-side menu and scroll to Appendix C Statistical Tables. There's also a link to these tables on the Blackboard menu. Click here to enter text. (7) What is the value of the obtained t statistic in jamovi? Click here to enter text. (8) Based on a comparison between the critical value of t and the obtained value fort, should the null hypothesis be retained or rejected? Explain your decision and also explain what this means for whether reading from an eReader affects alertness. Ch08 Homework Your name: Click here to enter text. (1) What is the null hypothesis that was tested in the alertness study? Click here to enter text. (2) What is the alternative hypothesis (nondirectional, two-tailed)? Click here to enter text. (3) What is the sample mean for the alertness variable? Click here to enter text. (4) What is the standard deviation? Click here to enter text. (5) What is the standard error? Click here to enter text. (9) What is the p value and What does it tell you about Whether to retain the null hypothesis or reject it? Click here to enter text. (10) What is the effect size and should it be considered small, medium, or large? Click here to enter text. (11) What are the lower and upper bounds of the condence interval around the sample mean? How would you interpret this? In other words, what does this condence interval tell you about the mean alertness score for the population of people who use an eReader? Click here to enter text? Results One Sample T-Test One Sample T-Test 95% Confidence Interval 95% Confidence Interval Statistic df p Mean difference Lower Upper Effect Size Lower Upper alertness Student's t -2.67 8.00 0.029 -4.00 -7.46 -0.541 Cohen's d -0.889 -1.65 -0.0889 Note. H. u # 50 Descriptives N Mean Median SD SE alertness 9 46.0 46 4.50 1.50A alertness 39 41 43 45 46 47 50 51 10 52 17