Public Health and Nutrition Several years ago, most doctors believed that it was not necessary to take any dietary supplement. Now, because many Americans do not eat a healthy, balanced diet, many physicians recommend a once-a-day multivitamin. A random sample of people was obtained and asked whether they regularly take a multivitamin. The data are given in the following table.
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Group
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Sample size
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Number who take a multivitamin
|
|
Men
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490
|
181
|
|
Women
|
428
|
214
|
Is there any evidence that the proportion of women who take a multivitamin is greater than the proportion of men? Use a = 0.005. Write a Solution Trail for this problem.