Question

Ralph is trying a new diet that involves not drinking beer and eating pizza. His goal is to reduce his BMI. He looks at his weight before he starts the diet and his weight after. He wants to see whether he lost weight, i.e., if his BMI after is smaller than before. 15 weeks later, he finds that his BMI went down -2.4; over the 15 weeks the SD was 2.4

At what levels would you reject the null?

Answer 1

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So, All levels > 0.00085 , we would reject the null hypothesis.