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,
Desire-based advertising is used to drive people to purchase items based on a desire for it. An example for desire-based advertising is to draw people in to a store based on a sale of an item that they desire. A fear-based advertisment can be for insurance. They advertise against the "what ifs" and "what could happen" if you do not hold car insurance and end up needing it.
The price of the bond is $100.
The bond's price is the present value of the face value plus the present value of the interest accrued throughout the bond's term.
The coupon interest rate is 5% of 100, that is $5 per year. The yield to maturity is also 5%. Because the coupon rate is equal to the yield, the bond's present value will only be its face value.
Present value = 5(P/A, 5%, 2) + 100(P/F, 5%, 2)
= 5×1.85941+ 100×0.90703
= 100
Therefore, the price of the bond is $100.
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Answer:
a We can more easily obtain products from all over the world
Answer:
d. The cost of the parking permit is part of the opportunity cost of attending college if you would not have to pay for parking otherwise.
Explanation:
Opportunity cost is a microeconomic concept used to describe how much an economic agent fails to earn in one economic activity by employing money in another economic activity. Thus, all expenses that a student performs to study at the university, including tuition, gasoline, parking, material, and time spent on the activity, is considered an opportunity cost, since all of this could be spent on another activity.
