A group of eight individuals with high cholesterol levels were given a new drug that was designed to lower cholesterol levels Cholesterol evels in milligrams per deciliter were measured before and after treatment for each individual with the following results Individual Before 1 296 2 289 3 280 4 295 5 281 6 281 7 283 8 285 Send data to Excel Part 0 2 Part 1 of 2 After 218 214 180 205 168 201 170 182 a Use a calculator to construct a 90 confidence interval for the mean reduction in cholesterol level Round your answers to at least one decimal place