Answer:
Option D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $151 and $216.
Explanation:
A confidence interval is a range of values, derived from the sample statistics, which may include the value of an unknown population parameter.
A 95% confidence interval indicates that between 152 of 160 samples (95%) of the same population will produce confidence intervals that will contain the population parameter.
It also means that we have a 95% confidence that the average (average amount) is among the resulting amounts obtained.
Logically, option "D" is missing the final part. This would be: D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $ 15.
This is the only true option, since the test is based on a sample of only 160 households, the entire population of households cannot be included.
Hence, the correct option is:
Option D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $151 and $216.
Some benefits citizens of a centrally planned economy derive from a move toward market based system are: Greater efficiency of resource use. Determines the types of goods and services to be produced the method in which they will be produced and the allocation of finished products.
Answer:
correct option is a. decrease by $80,000
Explanation:
given data
stock dividend = 10%
common stock = $5
Chief = 80,000 shares
market value = $10
to find out
Chief's retained earnings will
solution
here retaining earning will be decrease by the maount of stock dividend that is
retaining earning = $80,000 × 10 % × $10
retaining earning = $80,000 × 0.10 × $10
retaining earning = $80000
so here correct option is a. decrease by $80,000
Answer:
Direct Marketing
Explanation:
These companies and many more rely on selling door to door, using home sales parties, etc. They do not involve huge media campaigns. They are pretty much focused on their investments in advertising. Since they normally know better who are they're targetting.
Answer:
population shift
Explanation:
immigration, population growth: As the population grows or shrinks, the labor supply will tend to shift to the right or to the left. In a competitive labor market, the wage has two properties:
1. It adjusts to make supply and demand for labor equal.
2. It equals the value of the marginal product of labor.
