Answer:
C. populations are non normal and the sample sizes are large.
Step-by-step explanation:
To test hypotheses about the difference between two populations means we deal with the following three cases.
1) both the populations are normal with known standard deviations.
2)both the populations are normal with unknown standard deviations.
3) both the populations are non normal in which case both the sample sizes are necessarily large.
So option C is the correct answer.
1st =13
2nd = 13- -5 = 13+5 =18
3rd = 18 - -5 = 18+5 =23
4th = 23 - -5 = 23+5 = 28
Answer:
You can't do this without knowing the number of hours, but you can write an equation. The equation would be 12p. P means the number of hours they worked and 12 stands for how much they earn each hour. Therefore you would multiple both of them together.
The answer is D.122 BC is the square root of 22 squared and 120 squared.
