Page 1 of 1
3) The mean weight of trucks traveling on a particular section of 1-475 is not known. A state highway inspector needs an
Posted: Wed May 11, 2022 10:49 am
by answerhappygod
- 3 The Mean Weight Of Trucks Traveling On A Particular Section Of 1 475 Is Not Known A State Highway Inspector Needs An 1 (22.74 KiB) Viewed 35 times
3) The mean weight of trucks traveling on a particular section of 1-475 is not known. A state highway inspector needs an estimate of the population mean. He selects and weighs a random sample of 49 trucks and finds the mean weight is 16.9 tons. The population standard deviation is 4.9 tons. What is the 95% confidence interval for the population mean? A) 15.5 and 18.3 B) 14.0 and 19.0 C) 10.8 and 21.4 D) 16.9 and 19.5