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,
<span>Good IT management which is necessary for a great IT plan should advise management if technology being considered to solve a problem is not yet proven. Before an IT team decided to use a new type of </span>technology, it is important for them to make sure they have tested the technology and it has proven its capabilities. It is necessary for the technology to prove it can finish all of it's required tasks for the technology to be integrated into their system.
Answer:
a. Use a traditional letter style
c. Proofread several times.
Explanation:
The cover letter is the letter in which the person describe himself or herself with respect to their qualifications, interest, strength, weakness, achievements so that the interviewer could get a better idea about the person who is giving the interview
While creating a cover letter as a successful he or she needs to use a letter style which is to be traditional plus he or she proofread several times as it there is any mistake so it could be edited
Answer: c. Total Assets/ Equity
Explanation:
To measure the Return on Equity with 3 ratios, the <em>DuPont Analysis</em> can be used. This is a technique of deconstructing the Return on Equity ratio into various constituent ratios so that their effect on Return on Equity is better know.
The basic DuPont Analysis is;
Return on Equity = 
Total Assets/ Equity or the Assets to Shareholder Equity ratio is the answer.
