Three essential <span>principles of test construction are:
1. consistency. It refers to the consistency </span><span>between the goal of the subject, course, and the methods of teaching goals. Also consistency between the methods and what the test measures. </span><span>
2. validity. Validity refers to t</span>he ability of a test to measure what it was designed to measure. It can be material od skill.
3. reliability. The <span>test must be constructed in such a way that it will produce reliable, consistent results .</span>
Answer:
a) 15 to 35 approximately 95%
(b) 10 to 40 approximately almost all
(c) 20 to 30 approximately 68%
Explanation:
The data have a bell-shaped distribution which means the data is equally distributed on both sides of the mean.
We have the mean at 25 and a standard deviation of 5 which means that the interval is for each of the values of 5 .
The mean would be u and
The first value would be u ±σ = 25 ± 5= 20 and 30 (68 % )
The second value will be u ± 2σ= 25± 10 = 15 and 35 (95%)
The third value will be u ± 3σ= 25 ± 15 = 10 and 40 (99.7 % almost all)
In the figure below the light blue region gives u ±σ on both sides of the mean
, dark blue gives u ± 2σ values on both sides of the mean and grey gives
u ± 3 σ values on both sides of the mean.
It is obvious that 68 % of the data is contained in the u ±σ light blue region, 95 % of the data in the u ± 2σ dark blue including light blue and 99.7 % in the u ± 3σ all colored regions.
Answer:
11.30%
Explanation:
Roten rooters have an equity multiplier of 1.52
The total assets turnover is 1.20
The profit margin is 6.2%
= 6.2/100
= 0.062
Therefore the ROE can be calculated as follows
= 0.062× 1.52×1.20
= 0.1130×100
= 11.30%
Hence the ROE is 11.30%
The answer to your question is "Oligopolies."
An oligopoly is a market form where a market is controlled by a few large sellers or businesses. The type of market is going to effect the price in one of two ways. The first possibility is that the few businesses will work together, or collude, in order to establish higher than normal prices. The second possibility is that there will be fierce competition between the few sellers, which will result in a high level of competition and lower prices.
Answer:
C.
Explanation:
Based on the information provided by the Uniform Commercial Code (UCC) can be said that this means that fit for the ordinary purpose for which such goods are used. Meaning that the good that is being sold must meet the expectations that the ordinary buyer is expecting to receive from the product based on it's description and advertisements.
