Content X Bb A Pilot Study Co x | BE A Pilot Study Co x | | Content X MindTap - Ceng: X Login g.cengage.com/staticb/ui/evo/index.html?deploymentld=59939221231410500867142935&elSBN=9780357035542&id=2029763210&snapsho... CENGAGE | MINDTAP End-of-Chapter Problems: Chapter 08 Introduction to Hypothesis Testing 11. Gravetter/Wallnau/Forzano, Essentials - Chapter 8 - End-of-chapter question 11 Ackerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or computer) tended to have lower quiz scores t students who studied the same material from printed pages. To test this finding, a professor identifies a sample of n = 16 students who used th electronic version of the course textbook and determines that this sample had an average score of M = 72.5 on the final exam. During the previ three years, the final exam scores for the general population of students taking the course averaged u = 77 with a standard deviation of o = 8 formed a roughly normal distribution. The professor would like to use the sample to determine whether students studying from an electronic scr had exam scores that are significantly different from those for the general population. Standard Normal Distribution Mean = 0.0 Standard Deviation = 1.0 5000 2500 2500 O -3.0 -2.C 1.0 0.0 1.0 2. 3.0 -0.67 0.67 Search a W A+ 141 # 9 3 4 15 16 8X Content x Bb A Pilot Study Co X | Bb A Pilot Study Co x | | Content X MindTap - Ceng X Login https:/g.cengage.com/staticb/ui/evo/index.html?deploymentld=59939221231410500867142935&teISBN=9780357035542&id=2029763210&snapsho.. CENGAGE | MINDTAP End-of-Chapter Problems: Chapter 08 Introduction to Hypothesis Testing .5000 O O .2500 -2500 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 -0.67 0.67 Assuming a two-tailed test, state the null hypothesis in a sentence that includes the two variables being examined. The null hypothesis states that Using the standard 4-step procedure, conduct a two-tailed hypothesis test with a = .05 to evaluate the effect of studying on an electronic screen. Step 1. Ho: uccess Step 2. The critical region consists of Step 3. For these data the standard error is and z = | 1, which in the critical region. access Step 4. the null hypothesis, and conclude that studying on an electronic screen effect on final exam score. Save & Continue Continue without savin Q Search a W 144 10 o & K # 2 4 5 6 8 3 W E R T Y