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:
The correct answer is letter "A": Joanna, who is firm and dependable with respect to delivering results.
Explanation:
Operational leaders are those who analyze the strengths and weaknesses of their group to allocate the duties in a way that produces the most efficient outcome. In front of problems, this type of leader studies the impact and what is going to be needed to solve it. Operational leaders are mostly <em>results-driven</em>.
Answer:
the customer is prohibited from buying these securities
Explanation:
In the situation being described the statement that would be true is that the customer is prohibited from buying these securities. This is because intrastate offerings are security offerings that can only be purchased in the state in which it is being offered in and only by permanent residents of that state. Seeing since the customer in this scenario has his permanent residence in Colorado and not Montana, then he cannot purchase this offering.
Answer:
True
Explanation:
Firm A is operating at full capacity, if its sales keep increasing, then t will need to invest to expand its production capacity. Since firm B is operating below full capacity level, if its sales keep increasing it will have some spare production capacity it can use before operating at full capacity.
Therefore firm A will need to invest in an expansion of its production capacity while firm B can keep operating without new investments.
Answer:
sorry but I can't understand this question
