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:
d. 6.0 times
Explanation:
The calculation of inventory turnover ratio is shown below:-
Inventory turnover ratio = Cost of goods sold ÷ Average inventory
= Cost of goods sold = Sales revenue - Gross profit
= $1,800,000 - $600,000
= $1,200,000
Average inventory = (Beginning inventory + Ending inventory) ÷ 2
= ($160,000 + $240,000) ÷ 2
= $400,000 ÷ 2
= $200,000
Inventory turnover ratio = Inventory turnover ratio ÷ Average inventory
= $1,200,000 ÷ $200,000
= 6.0 times
Answer:
More; increasing supply and earning profit; entering the market; reducing the profit to zero; horizontal.
Explanation:
The claim by WebMD that the protein in tuna would lead to 2 Years increase in life expectancy would cause the demand to increase at every price. The demand curve will consequently shift to right.
As a result the firms in short run will supply more and enjoy profits.
Since the firms were facing long run equilibrium and were enjoying zero profit, an increase in price will cause profit to firms.
Since in the short run firms can not enter or exit they will continue producing.
In the long run attracted by the profit earned by existing firms, the new firms will enter the market till all the firms are having zero profits.
In the tuna industry the new firms will start production, so the industry supply will increase causing a rightward shift in the supply curve.
In the long run the shape of the supply curve of the industry will be horizontal.
Answer:
False.
Explanation:
In an interview for a job, there is no specific rule to be followed that an interviewee must follow. An interview is a perfect time to get to know more about the company's needs and also to advertise yourself.
But in case the job is no something that you like, then you must call the interviewer back and thank them for their time and also tell them the reason for the job rejection. Moreover, it is unethical to abruptly decline any job offer. Also, rejecting a job during the interview is not a standard procedure, for it will only make you seem more unethical and disrespectful.
Therefore, <u>it is not true that rejecting a job on the spot during an interview is a standard procedure.</u>
emission of greenhouse gases
Greenhouse gases are naturally present in the atmosphere in order to keep the earth warmer by trapping some of the sun's rays on earth. Greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, ozone, chlorofluorocarbons, and hydrofluorocarbons.
Human activities contribute to the emission of greenhouse gases in the atmosphere through fossil fuel use, industrial processes, and intensive livestock farming, among others. Emission of large amounts of greenhouse gases can increase their natural levels in the atmosphere, possibly resulting to global warming.
