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In order to find the average speed of cars on Interstate 95, researchers set up an observational study on the side of the road.
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? O 67 miles per hour O25 miles per hour O 14 miles per hour O70 miles per hour
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