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Many roads, at some point, have a construction zone that has much lower speed limits compared to what the speed limit would be if there
Many roads, at some point, have a construction zone that has much lower speed limits compared to what the speed limit would be if there were no construction occurring. To see if drivers obey these lower speed limits, a police ofcer uses a radar gun to measure the speed (in miles per hour or mph) of a random sample of 10 drivers in a 25 mph construction zone. Here are the data: 27 33 32 21 30 30 29 25 27 34 We may assume that this sample was obtained from an approximately Normal population. Is there convincing evidence that the average speed of all the drivers in a construction zone like this is different than the posted speed limit? Use an alpha level = 5%. Complete the below blanks ("H" "T" \"O" "M" & "5"). You will need to use StatCrunch. P: Mu is the true, unknown population parameter of mean speed of all drivers in a construction zone like this one H: A: Random sample (stated in the problem); Normal (approximately Normal stated in the problem) N: One-sample T hypothesis test T: O M: .0
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