Answer:
Question 1: The most correct option is option D, which is 0.0133
Question 2: Her data is a random sample from the population of interest.
Explanation: For the first question;
Standard error I the error in the standard deviation. To calculate standard error the formula is used.
S.E = Sd/√n
S.E = standard error
Sd= standard deviation = 0.2
n = number of occurrence = 180
The proportion of the regular users of vitamin among the 180 people is the standard deviation between them.
Using equation above.
S.E = 0.20 ÷ √180 =
0.20 ÷ 13.42 = 0.0149
S.E is 0.0149, when compared to the options, the most correct option is 0.0133, because the question states the answer to be approximately to which of the option.
QUESTION2:
Her research will have much error, because she chooses the car to count. Therefore the research procedure has not satisfied the process that will produce an accurate result. Since she has choosed the street to be her population of interest, all the cars in the street should be counted.
This is not a randomized controlled research, so selection of cars to count is not necessary.
The inventory has to be recorded separately to each item and this will generally result in the lowest inventory amount.
<u>Explanation:</u>
LCM- the Lower of Cost which is also called as Market rule is the theory for valuating the inventory in accounting. According to the LCM rule, in a business the cost of inventory must be recorded at lower cost (it can be either the current market price or the original cost)
Reason for recording at lower cost:
Aggregating the items results in the incorporation of some items at amounts greater than LCM.
Example:
If product X (cost = 2 dollars, market = 1 dollar) and product Y (cost = 3 dollars, market = 4 dollars) are aggregated for LCM, the inventory measurement will be 5 dollars. If the rule is applied separately to both the products, the LCM measurement will be 4 dollars.
Answer: C. purchase of EFGH separately; and the sale of ABCD separately
Explanation:
Answer: The answer is $1,200
Explanation:
In order to calculate the Depreciation, we use the formula:
Gross investment = Net Investment + Depreciation.
Let Depreciation be represented by x
Gross investment - $6,000
Net investment - $4,800.
Therefore, we have:
6,000 = 4,800 + x
x = 6,000 - 4,800
x = 1,200
Therefore Depreciation is $1,200
Answer: Option A
Explanation: In simple words, substitution effect refers to the economic phenomenon which states that when price of one good rises the demand for the alternative of that particular good also rises. For example - coke and pepsi.
On the other hand, income effect states that when the price of a commodity rises, a number of consumers might find it hard to purchase due to the price exceeding their income power which further results in lower demand.
Hence from the above we can conclude that the correct option is A.