Mathematics, 20.12.2019 23:31 justhereforanswers13
Obesity is seen as a growing health problem in many countries, including the united states. to determine whether or not there has been an increase in obesity in men over the past ten years, medical records for 50 randomly sampled men from the year 2000 and for 75 randomly sampled men from the year 2010 were analyzed. out of the 50 men from 2000, 10 were assigned as obese according to their height and weight while 30 out of the 75 men from 2010 were assigned as obese.
the 90% confidence interval for the difference in the proportion of obese men between the years 2000 and 2010 is (-0.3316, -0.0684). select the correct interpretation of this confidence interval.
a. the proportion of men who were obese in the year 2000 is between 0.0684 and 0.3316 less than the proportion of men who were obese in the year 2010.b. we are 90% confident that the proportion of men who were obese in the year 2000 is between 0.0684 and 0.3316 less than the proportion of men who were obese in the year 2010.c. we are 90% confident that the proportion of men who were obese in the year 2000 is between 0.0684 and 0.3316 greater than the proportion of men who were obese in the year 2010.d. in 90% of all samples, the proportion of men who were obese in the year 2000 is between 0.0684 and 0.3316 less than the proportion of men who were obese in the year 2010.
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