The complete question is as follows:
The admission directory of Big City University has a novel idea. He proposed using the IQ scores of current students as a marketing tool. The university agrees to provide him with enough money to administer IQ tests to 50 students. So the director gives the IQ test to an SRS of 50 of the university’s 5000 freshman. The mean IQ score for the sample is xbar=112. The IQ test he administered is known to have a σ of 15. What is the 95% Confidence Interval about the mean? What can the director say about the mean score of the population of all 5000 freshman?
Answer: The 95% confidence interval about the mean is
.
The director can say that he is 95% confident that the mean IQ score of the 5000 freshmen lies between 107.84 and 116.16.
We follow these steps to arrive at the answer:
Since the population standard deviation of the IQ test is known, we can use the Z scores to find the confidence interval.
The formula for the confidence interval about the mean is:

In the equation above, X bar is known as the point estimate and the second term is known as Margin of Error.
The Critical Value of Z at the 95% confidence level is 1.96.
Substituting the values in the question in the equation above we have,



Answer:
B. there is a movement up along the demand curve to a smaller quantity demanded.
Explanation:
Based on the laws of demand, if the price of the good rises the quantity demanded of that good would be reduced keeping other things constant and if the price of the good declines the quantity demanded of that good would be raised keeping other things constant.
It represents the inverse relation between the price and the quantity demanded of the good
Therefore the quantity demanded get decreased with the price
Answer:
Present value = $35.00326585 rounded off to $35.00
Explanation:
Using the dividend discount model, we calculate the price of the stock today. It values the stock based on the present value of the expected future dividends from the stock. To calculate the present value of the stock, we will use the following formula,
Present value = D1 / (1+r) + D2 / (1+r)^2 + ... + Dn / (1+r)^n +
[(Dn * (1+g) / (r - g)) / (1+r)^n]
Where,
- r is the required rate of return
- g is the constant growth rate in dividends
- n is the number of years
Present value = 5 / (1+0.155) + 6.25 / (1+0.155)^2 + 4.75 / (1+0.155)^3 +
3 / (1+0.155)^4 + [(3 * (1+0.07) / (0.155 - 0.07)) / (1+0.155)^4]
Present value = $35.00326585 rounded off to $35.00
Answer:
Bait and Switch
Explanation:
Bait and switch is a deceptive sales technique that draws customers in with the promise of low prices and then "switches" to say that the promised item is not available. It is actually illegal under <em>some </em>circumstances in the United States.
Answer:
申し訳ありませんが、私はできないので助けられません:-(
Explanation: