solve please

sagestion #3 An experimental psychologist is interested in whether the color of an animal's surroundings affects learning rate. They test 16 rats in a box with colorrl wallpaper. The average rat (of this strain) can learn to run this type of maze in a box without any special coloring in an average of 25 trials, with a variance of 64, and a normal distribution. The mean number of trials to learn the maze, for the rats tested with the colorful wallpaper, is l 1. (i) What is the null hypothesis? a. The rate of learning for the sample of rats tested with colorful wallpaper will be no different than the population of rats tested under ordinary circumstances. b. The rate of learning for the sample of rats tested with colorful wallpaper will be faster than the population of rats tested under ordinary circumstances. c. The rate of learning for the population of rats tested with colorful wallpaper will be no different than the population of rats tested under ordinary circumstances. (1. The rate of learning for the population of rats tested with colorful wallpaper will be faster than the population of rats tested under ordinary circumstances. (ii) What is the 954? a. 8 b. 11 c. 25 d. 64 (iii) What is g\"? a. 64M = 4.00 b. 64116) 2 2.00 c. 64m = 5.82 (1.1464111): 2.41 (iv) The shape of the distribution of means a. will be rectangular. b. will be atter than a normal curve. c. will be approximately normal. d. cannot be determined from the information given. (v) If the mean score of the sample is more extreme than the cutoff score on the comparison distribution, the psychologist will conclude that a. the null hypothesis that the rats in the sample will learn more is supported. I). the wallpaper did not have a signicant effect on the rate of learning. c. the color of the chamber had a signicant effect on the rate of learning. d. the results are inconclusive since the null hypothesis cannot be rejected