Aconsumer group claims that the mean acceleration time from 0 to 60 miles per hour for a sedan is 7.9 seconds. a random sample of 33 sedans has a mean acceleration time from 0 to 60 miles per hour of 7.6 seconds. assume the population standard deviation is 2.3 seconds. find the standardized test statistic and the corresponding p-value.

d

gimmee one of those gold crowns!

~coco

answer: sorry i can't you.

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -