Suppose that an automobile manufacturer designed a radically new lightweight engine and wants to recommend the grade of gasoline that will have the best fuel economy. the four grades are: regular, below regular, premium, and super premium. the test car made three trial runs on the test track using each of the four grades and the miles per gallon recorded. at the 0.05 level, what is the critical value of f used to test the hypothesis that the miles per gallon for each fuel is the same. show your work.

miles per gallon

regular: below regular premium super premium

$39.31 36.69 38.99 40.04

39.87 40.00 40.02 39.89

39.87 41.01 39.99 39.93

a.) 3.49b.) 4.07c.) 2.33d.) 3.86e.) 3.26

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

the anwser is d) 75°

step-by-step explanation:

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled

you can not solvr this without numbers