Answer: -3.0593
Step-by-step explanation:
The test statistic for the difference between two population mean (when population standard deviations 
are known ) is given by :-
where ,
= Sample sizes taken from two populations 1 and 2.
= Difference between two Sample mean.
= Standard deviations of populations 1 and 2.
As per given , we have
We assume that the data follows a normal distribution.
Then, the test statistic will be :-
Hence, the test statistic= -3.0593
Answer:
This is kind of late, but I hope I could help maybe for a later assignment or assesment.
The estimates of y have become increasingly more precise, with some of the earlier ones having a margin of error of more than 0.8
None of the estimates support newton's theory that y=0
Most of the estimate support Einstein, or at least have a margin of error that accounts for einstien.
Answer:
2 hours
Step-by-step explanation:
Let's denote the amount of time we need to find out, t.
=> 600 + 50t < 500 + 100t
or 600 - 500 < 100t - 50t
or 100 < 50t
or 100/50 < t
or t > 2
=> After 2 hours, company B will be cheaper option than company A
Answer:
Table c mate
Step-by-step explanation:
