At a local gym, a random sample of 75 members took a survey about their favorite type of exercise. bicycling-18 members
exercise classes- 22
running on treadmill-15
weight lifting- 20

There are 350 total gym members. What is the most reasonable estimate for the number of gym members who prefer running on the treadmill?
A-23
B-70
C-85
D-93

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?