![subject](/tpl/images/cats/mat.png)
Mathematics, 08.04.2020 17:36 ladybugys
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.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:00
With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:20
What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:50
Which is the graph of this function 3 square root of x plus one if
Answers: 1
You know the right answer?
Answer key A certain brand of car is rated to get 35 miles per gallon on the highway. A researcher b...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 12.02.2021 09:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 09:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 09:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/istoriya.png)
History, 12.02.2021 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 09:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 12.02.2021 09:00
![question](/tpl/images/cats/biologiya.png)
Biology, 12.02.2021 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 09:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 09:00