In order to find the average speed of cars on Interstate 95,

Last updated: 7/13/2022

In order to find the average speed of cars on Interstate 95, researchers set up an observational study on the side of the road. Researchers gathered a sample of 10 cars and found their average speed. They did this 100 times in order to create a sampling distribution. The range of speeds on the sampling distribution was 45 to 95 with a mean of 67. What was the margin of error? 67 miles per hour 25 miles per hour 14 miles per hour 70 miles per hour