To compare the dry braking distances from 30 to 0 miles per hour for two makes of​ automobiles, a safety engineer conducts braking tests for 35models of Make A and 35 models of Make B. The mean braking distance for Make A is 41feet. Assume the population standard deviation is 4.6 feet. The mean braking distance for Make B is 45feet. Assume the population standard deviation is 4.3 feet. At alphaequals0.10​,can the engineer support the claim that the mean braking distances are different for the two makes of​ automobiles

There is sufficient evidence to support the claim.

Step-by-step explanation:

Given

Make A

Make B

First, we state the null and alternate hypothesis

Next, calculate test statistic:

The critical value at is:

So, we reject

This implies that; there is sufficient evidence to support the claim.

answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.

step-by-step explanation:

answer: 5 17/33 % (to the tenth)

step-by-step explanation:

he guessed: 34.5 pounds

actual weight is 32.7

there for he is off:

34.5 -32.7 = 1.8

32.7 is the 100%

1.8 represents %? of 32.7

therefore:

32.7   - 100%

1.8     -     x%

x= 1.8*100%/32.7% = 18*100%/327%

x=1800%/327%   = (5 165/327)%

to the tenth:

5 17/33 %