In a histogram,the proportion of the total area which must be to the left of the median is more than 0.50 if the distribution is positively skewed.

The following scatter plot and SPSS output represent data collected on 89 middle-aged people.The relationship between body weight and percent body fat is to be studied. What is an approximate 95% confidence interval for the average percent of body fat for middle-aged people who weigh 180 pounds?