Can your diet make you happier? A researcher wants to know if the food you eat has an effect on your happiness. A random sample of 41 participants was asked to complete a survey on happiness and a questionnaire on their diet. The happiness survey is scored on a scale of 50-100, where higher scores are associated with someone who has a higher degree of happiness and satisfaction with their life. The data from the survey and the type of diet are provided in Table 11.20. Using a nonparametric test, determine if there is a difference in the responses to the happiness survey based on the type of diet.

Table 11.20

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Responses to Happiness Survey by the Type of Diet RKE No Specific Diet 70 Vegetarian Vegan 92 78 Low Carb 74 Low Fat 58 55 56 77 74 84 94 50 92 62 53 74 61 75 76 86 71 81 90 50 86 66 53 72 73 RN | | | | 73 94 72 97 69 73 69 55 86 67 66 58