It would be 12 (B)
thats i beleive the answer
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:
3.375
Step-by-step explanation:
(3/5)^3 / (2/5)^3 = 3.375
Answer:
7;4 7 to 4
Step-by-step explanation:
1.) In what month did he sell he most soccer balls ?
2.) What is the range of April and July?
3.) What is the some of all the months?