To estimate the fuel efficiency of a new compact automobile, an engineer performed n = 16 test runs and recorded the miles per gallon (mpg) for each run. The sample mean was 42.2 mpg with standard deviation 8.8.a) construct a 99% confidence interval for the true mean mileage for this automobile.

- Lower limit= ?

-upper limit= ?

(please round your answers to 1 decimal place)

b) the manufacturer of this automobile claims that it gets 50mpg. Based on the confidence interval, do you think this is a reasonable claim? why or why not?

step-by-step explanation:

“a term can be a signed number, a variable, or a constant multiplied by a + sign or j sign. in , the terms are 5x , 3y and 8. when a term is made up of a constant multiplied by a variable or variables, that constant is called a coefficient.” i hope this you.

answer: 5

step-by-step explanation:

since, the range is the difference between the lowest and highest values of the given sample space.

and, here the sample space = { 3, 1, 0, 4, 1, 4, 2, 3, 0, 5, 0, 1, 1, 2, 0, 4, 1,4, 4 ,2 ,3 ,2 ,0 ,1 ,4 }

here, the highest value of the given sample = 5

and, the lowest value = 0

therefore, the range of the sample space = 5 - 0 = 5