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4. A random sample of young women were asked to evaluate a new shampoo. The shampoo formulation that the women evaluated was identical for all women, except for the color. Some received a green shampoo, some red and some tan. After using the shampoo for two weeks, they were asked to rate it as below average, average, or above average. The result in data are shown below: Rating Below Average \"\" Above Average a) Calculate the expected count for the bottom right cell (i.e., 'Above Average' and 'Tan'), and explain what the number means. (0.5 + 0.5 mark) b) What is the contributiOn to the Chi-square statistic from the cell in part (a). (0.5 marks) c) The Chi-square statistic has been calculated to be 14.22. Do we have enough evidence to conclude that the color of the shampoo affects its rating? Use the three-step process to answer this question. (2 marks)