Coronary heart disease (CHD) begins in young adulthood and isthe fifth leading cause of death among adults aged 20 to 24 years.However, studies of serum cholesterol levels among college studentsare scarce. One study at a southern university investigated thelipid levels in a cohort of sedentary university students. A totalof 85 students volunteered for the study and met the eligibilitycriteria. The following table summarizes the sample data collectedfor the blood lipid levels, in milligrams per deciliter (mg/dl), ofthe participants broken down by gender:
| Females (n1 = 48) | Males (n2 = 37) |
| Mean | Standard deviation | Mean | Standard deviation |
Total cholesterol | 173.70 | 34.79 | 171.86 | 33.24 |
LDL | 96.38 | 29.78 | 109.44 | 31.05 |
HDL | 61.62 | 13.75 | 46.47 | 7.94 |
Construct a 95% confidence interval estimate for the meandifference in total cholesterol levels for sedentary female andmale university students.
Note: Do not do any intermediate rounding in yourcalculations!
ANSWER:  (Click to select)+-±  ≤ (Click toselect)(π1 - π2)(x-bar1 - x-bar2)(μ1 - μ2)(s1 - s2)(σ1 - σ2)μd(n1 -n2)(p1 - p2) ≤ (Click to select)±-+  (reportyour answers to 4 decimal places, using conventional roundingrules.)
PLEASE ROUND 4 DECIMAL PLACES
