A group of virologists conducted a medical study to investigate whether cow's milk makes a difference in the chances of developing osteoporosis. 2,000 adult volunteers were randomly assigned to one of two groups. Half of the volunteers were assigned to drink cow's milk and the other half were assigned a placebo drink to take each day. At the end of two years, 110 of the volunteers who drank cow's milk developed osteoporosis and 85 of the people who took the placebo drink developed osteoporosis. a. Do the data provide convincing statistical evidence at a = 0.10 that drinking cow's milk will make a difference in the chance of developing osteoporosis?

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1) A group of virologists conducted a medical study to investigate whether cow's milk makes a difference in
the chances of developing osteoporosis. 2,000 adult volunteers were randomly assigned to one of two
groups. Half of the volunteers were assigned to drink cow's milk and the other half were assigned a
placebo drink to take each day. At the end of two years, 110 of the volunteers who drank cow's milk
developed osteoporosis and 85 of the people who took the placebo drink developed osteoporosis.
a. Do the data provide convincing statistical evidence at a = 0.10 that drinking cow's milk will make a
difference in the chance of developing osteoporosis?
b. Interpret the p-value in context.
Transcribed Image Text:1) A group of virologists conducted a medical study to investigate whether cow's milk makes a difference in the chances of developing osteoporosis. 2,000 adult volunteers were randomly assigned to one of two groups. Half of the volunteers were assigned to drink cow's milk and the other half were assigned a placebo drink to take each day. At the end of two years, 110 of the volunteers who drank cow's milk developed osteoporosis and 85 of the people who took the placebo drink developed osteoporosis. a. Do the data provide convincing statistical evidence at a = 0.10 that drinking cow's milk will make a difference in the chance of developing osteoporosis? b. Interpret the p-value in context.
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