Answer:
The value of the test statistic is -2.64.
Step-by-step explanation:
The test statistic is:
In which X is the sample mean, 
is the expected(claimed) mean, 
is the standard deviation and n is the size of the sample.
An automobile manufacturer claims that its van has a 40.3 miles/gallon (MPG) rating.
This means that 
After testing 250 vans, they found a mean MPG of 39.9. Assume the standard deviation is known to be 2.4.
This means, respectively, that:
So
The value of the test statistic is -2.64.
Answer:
The first answer is correct.
(x + 1)^2 + (y - 2)^2 = 1
A circle with the midpoint M(Mx, My) and the radius r can be written as
(x - Mx)^2 + (y - My)^2 = r^2
Answer:oop
Step-by-step explanation:
I just helped my sister on this problem its kinda scary... :P
If you mean 1/3 and 3/5
Belinda has 135 beads in total.
Find 1/3 of 135.
135 ÷ 3 = 45.
Belinda uses 45 beads to make the bracelet.
Hope I helped :)
Then the inverse<span> is y = </span>(x + 2)<span> / </span>3<span>.</span>
