The standard deviation of sample equals: 11
Explanation:
Given:
variance of sample (
) = 121
no, of observations made = 441
standard deviation = ?
By using the formula:
Standard deviation (S) = 
= 
= 
= 11
Hence the standard deviation is equal to 11.
Answer:
Level of sales in dollars in order to generate a profit of $54,000 Fixed cost + Target profit/Contribution per unit $270,000 + $54,0000/0.75
= $432,000
Number of units to be sold
= Level of sales/Selling price
= $432,000/$36
= 12,000 units
The correct answer is A
Explanation:
In this case, we need to calculate level of sales in dollars, which is fixed cost plus target profit divided by contribution margin ratio. Then, we will calculate no of units to be sold, which is the level of sales divided by selling price.
The problem is missing some parts:
First, how many parts should you purchase each time you
place an order.
H=.2*$4 = $0.80
S= $800
R = 50,000
Q = 2SRH
= 2(800) (50000) (.8)
= 10,000 units
The second question is how many timer per year will you
place orders.
Required order = R/Q
= 50000/10000
= 5 times
