Answer:
Step-by-step explanation:
Given that in our industry on average a firm paid out record year end bonuses of $125,500 per employee for 2008. We would like to take a sample of employees at our firm to see whether the mean year end bonus is different from the reported mean of $125,500 for the population.
1. Sample Mean =
118000
2. Population Mean = 125500
3. Population Standard Deviation = 30000
4. Sample size = 40
5. Alpha Error = 5%
6. Confidence Coefficient = 95%
7. Calculate Test Statistic = Mean difference /s td error = -1.581
8. Rejection Region Critical Value = If Z statistic is below -1.96 or above 1.96
Answer:
5.83
Step-by-step explanation:
You find volume of a cube by its side length cubed. (a^3). so 1.8 to the power of three is 5.83
The answer is 4,172
First of all i did 490x9=2880
Then i did 2880+1292=4172
4172
Let the price of a hot dog be h and price os a soda be s dollars. Then we have:-
4h + 3s = 6.55.......................(1)
2h + 5s = 4.85 multiply this equation by -2:-
-4h -10s = -9.70......................(2)
Adding (1) and (2):-
-7s = -3.15
s = -3.15 / -7 = 0.45
So $0.45 is the price of a soda
To find price of a hot doe plug s = 0.45 into equation (1):-
4h = 3(0.45) = 6.55
4h = 6.55-1.35 = 5.20
h = 5.20 / 4 = $1.30
The answer is price hot dog = $1.30
