Answer:1.4
Step-by-step explanation:
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:
(4,-2.5)
Step-by-step explanation:
first one is x cordination...it is under the 4
second one is Y cordination..its between -2 and -3
If you understand my answer.mark me as Brainliest...If not...Mark me as BrAiNlEss...☺️
The train is traveling at 165 mph
495/3=165
825/5=165
1155/7=165
1485/9=165
Answer:
2^2×20
Step-by-step explanation:
2^2×20
because 2×20=40
so, 2^2×20=2^40