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According to a food website, the mean consumption of popcorn annually by Americans is 61 quarts. The marketing division of the food website unleashes an
According to a food website, the mean consumption of popcorn annually by Americans is 61 quarts. The marketing division of the food website unleashes an aggressive campaign designed to get Americans to consume even more popcorn. Complete parts (a) through (c) below. (a) Determine the null and alternative hypotheses that would be used to test the effectiveness of the marketing campaign. Ho (Type integers or decimals. Do not round.) (b) A sample of 880 Americans provides enough evidence to conclude that marketing campaign was effective. Provide a statement that should be put out by the marketing department. O A. There is not sufficient evidence to conclude that the mean consumption of popcorn has stayed the same. O B. There is sufficient evidence to conclude that the mean consumption of popcorn has stayed the same. O C. There is not sufficient evidence to conclude that the mean consumption of popcorn has risen. O D. There is sufficient evidence to conclude that the mean consumption of popcorn has risen. (c) Suppose. in fact, the mean annual consumption of popcorn after the marketing campaign is 61 quarts. Has a Type I or Type II error been made by the marketing department? If we tested this hypothesis at the
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