Answer:
A. 0.3204 B. $14.669
Explanation:
Mean = 8.9 SD = 4.5
Required probability = P (X >/= 550/50)
P(X>/=11) = 1 - P[(X - mean/SD) < (11 - mean)/SD]
= 1 - P(Z < (11-8.9)/4.5)
P(X>/=11) = 1 - P(Z < 0.4666667)
Using Excel NORMDIST(0.4666667,0,1,1)
P(X>/=11) = 1 - 0.6796 = 0.3204
The probability that she will earn at least $550 = 0.3204
b. P
(
X > x
) = 0.10
1 − P
(
X − mean)/SD ≤ (x − mean)
/SD = 0.10
P
(
Z ≤ z
) = 0.90
Where,
z = (x − mean
)/SD
Excel function for the value of z:
=NORMSINV(0.9)
=1.282
Hence (x - mean)/SD = 1.282
= (x - 8.9)/4.5 = 1.282
x = (1.282*4.5) + 8.9
x = 14.669
He earns $14.669 on the best 10% of such weekends.
Answer:
It will purchase 3 cans
total consumer surplus 0.70
Explanation:
the market price is 0.55
It will purchase up to three cans. the fourth can he is willing to purchase at 0.40 but the price is 0.55 so it won't trade for that one.
<u>consumer surplus:</u>
difference between the amounts he was willing to pay for each unit and the market price:
first can 0.95 - 0.55 = 0.40
second can 0.80 - 0.55 = 0.25
third can 0.60 - 0.55 = 0.05
total consumer surplus 0.70
Answer:
The correct word for the blank space is: direct.
Explanation:
Foreign Direct Investment is a type of cross-border investment to create a lasting interest that a resident company based in one country could have in a company operating in another. Lasting interest implies a substantial degree of interest in the company's management as well as establishing a long-term relationship between the direct investor and the direct investment business.
Answer:
Operating or production department.
Explanation:
Operating or production department Deals with production and efficiency.
It should be noted that in a firm that manufactures clothing, the department that is responsible for actually assembling the garments could best be described as Operating or production department.
Increase government spending and the purchase of bonds/securities.
This will stimulate the economy by providing jobs an incomes through government projects rather than changing interest rates or the money supply which is more likely to affect inflation.
