17/An experimental psychologist interested in whether the color of an animal's surroundings affects learning rate tests 9 rats in a box with colorful wallpaper. The average rat of this strain can learn to run this type of maze in a box without any special coloring in 23 trials, with a variance of 16 and the distribution is normal. The mean number of trials to learn the maze for the rats tested with the colorful wallpaper is 25. What is the research hypothesis? A)The rate of learning for the rats tested with colorful wallpaper will be faster than the population of rats tested under ordinary circumstances B)The rate of learning for the rats tested with colorful wallpaper will be different than the population of rats tested under ordinary circumstances C)The rate of learning for the rats tested with colorful wallpaper will be no different than the population of rats tested under ordinary circumstances D)The rate of learning for the rats tested with colorful wallpaper will be slower than the population of rats tested under ordinary circumstances 18/The probability of failing to reject the null hypothesis when the null hypothesis is actually true (and the research hypothesis is false) is equal to: A)1 minus beta B)1 minus alpha C) beta D) alpha