question 14

A zoologist is interested in how far a llama can spit on average. She randomly selects 148 llamas. The zoologist and her team monitor each llama and record their first spitting distance, The zoologist creates a histogram of these spitting distances and observes that the histogram is approximately bell-shaped and centered around a mean of 12.7 feet with standard deviation of 2 1 feet. The zoologist wishes to create a 99% confidence interval for the true average spitting distance of all llamas. What is the margin of error of the zoologist's confidence interval? Select one O 8. 0.338 O b. 5.483 O c. 0.451 O d. 0.445 O . 5.410