Question 27 (1 point) What conclusion would you draw based on your analysis using an alpha level of .01? O Based on a critical value of 3.747, there was not a significant improvement in trainees' memory performance after training. Based on a critical value of -2.132, there was a significant improvement in trainees memory performance after training. Based on a critical value of 2.132, there was not a significant improvement in trainees' memory performance after training. Based on a critical value of -3.747, there was not a significant improvement in trainees' memory performance after training. Based on a critical value of -4.604, there was not a significant improvement in trainees' memory performance after training. Question 28 (1 point) Saved A researcher interested in the effect of alcohol on perceptual motor ability, which were measured using the Hammersmith Scale of Motor Ability. Twenty participants are tested twice, once after having two alcoholic drinks and once after having two glasses of water. The two tests were completed one week apart to give the alcohol a chance to wear off. Which of the following statistics is appropriate to analyze these data? MacBook Air DII DD 20 F7 F8 F9 F10 F3 F4 F5 F6 % "> & O 6 V 4 5 8Time Left:1:24:58 Alison Jones Aguilar: Attempt 1 O JU Question 26 (1 point) Assuming all assumptions are met, what is the observed test statistic to determine whether there is a significant improvement in trainees' memory performance after training? 1.63 O-1.63 3.65 1.50 O-3.65 Question 27 (1 point) What conclusion would you draw based on your analysis using an alpha level of .01? MacBook Air 20 DII DD F3 F4 F5 F6 F7 F8 F9 F10 % & 3 A 5 6 7 8 9 O E R T Y U OFive police trainees were seated in a darkened room facing a projector screen. Ten different license planes were projected on the screen, one at a time, for 5 seconds each. After the last license plate was shown, the lights were turned on and the police trainees were asked to write down as many of the 10 license plate numbers as possible, in any order at all. The trainees who took this test were then given a weeklong memory-training course and were then retested. The results are shown in the table below. Number of license Number of license plates correctly plates correctly identified before identified after training training U 8 6 6 5 5 8 Question 26 (1 point) Assuming all assumptions are met, what is the observed test statistic to determine whether there is a significant improvement in trainees' memory performance after training? 1.63 MacBook Air DD DII DD A 20 989 F3 F4 F5 F6 F7 F8 F9 F10 $ o & O - 5 6 8 9 E R T Y U O P D F G H C K