The body mass index (BMI) was measured in 1200 randomly selected adults, with the results shown in the table.   BMI       under 18.5 18.5 - 25 over 25 Men 36 165 315 Women 75 274 335 a. Give a point estimate for the proportion of all men whose BMI is over 25. b. Assuming the sample is sufficiently large, construct a 99% confidence interval for the proportion of all men whose BMI is over 25. c. Give a point estimate for the proportion of all adults, regardless of gender, whose BMI is over 25. d. Assuming the sample is sufficiently large, construct a 99% confidence interval for the proportion of all adults, regardless of gender, whose BMI is over 25.

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The body mass index (BMI) was measured in 1200 randomly selected adults, with the results shown in the table.

  BMI    
  under 18.5 18.5 - 25 over 25
Men 36 165 315
Women 75 274 335


a. Give a point estimate for the proportion of all men whose BMI is over 25.
b. Assuming the sample is sufficiently large, construct a 99% confidence interval for the proportion of all men whose BMI is over 25.
c. Give a point estimate for the proportion of all adults, regardless of gender, whose BMI is over 25.
d. Assuming the sample is sufficiently large, construct a 99% confidence interval for the proportion of all adults, regardless of gender, whose BMI is over 25.

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