Mathematics, 17.04.2020 21:01 monstergirl25
A variable of two populations has a mean of 7.9 and a standard deviation of 5.4 for one of the populations and a mean of 7.1 and a standard deviation of 4.6 for the other population. Moreover, the variable is normally distributed on each of the two populations.
A. For independent samples of 3 and 6, respectively, find the mean and standard devriation of x1 and x2.
B. Must the variable under consideration be normally distributed on each of the two populations to part (a)? Explain.
C. Can you conclude that the variable x1 minus x2 is normally distributed? Explain.
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 16:30
Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station.he knows that the state tax is 5.5. how much change will he receive from a $5 bill?
Answers: 1
Mathematics, 21.06.2019 18:30
If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.
Answers: 1
Mathematics, 21.06.2019 19:00
Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars
Answers: 1
You know the right answer?
A variable of two populations has a mean of 7.9 and a standard deviation of 5.4 for one of the popul...
Questions
Mathematics, 05.05.2020 04:15
Chemistry, 05.05.2020 04:15
Mathematics, 05.05.2020 04:15
Chemistry, 05.05.2020 04:15
Social Studies, 05.05.2020 04:15
Mathematics, 05.05.2020 04:15
Mathematics, 05.05.2020 04:15
Mathematics, 05.05.2020 04:15
History, 05.05.2020 04:15
Advanced Placement (AP), 05.05.2020 04:15
Computers and Technology, 05.05.2020 04:16
