Mathematics, 18.03.2020 19:24 fqjenfiq6959
Answer key A certain brand of car is rated to get 35 miles per gallon on the highway. A researcher believes the claim is faulty – that is too high. His company drives a random sample of 40 cars in identical highway conditions for a total of 500 miles and checks the fuel economy. He finds that the average rating for the cars is 32.54 miles per gallon. Using a population standard deviation of 1.3mpg, determine if there is evidence at the 2% level that the company’s claim of 35 mpg is too high. Also, find a 98% confidence interval for the average mileage rating of this car and interpret the answer.
Answers: 1
Mathematics, 21.06.2019 13:30, tylorwsimmons
Which transformations could have occurred to map △abc to △a"b"c"? a rotation and a reflection a translation and a dilation a reflection and a dilation a dilation and a rotation
Answers: 1
Mathematics, 21.06.2019 20:00, brittanybyers122
Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily
Answers: 2
Answer key A certain brand of car is rated to get 35 miles per gallon on the highway. A researcher b...
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