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:
Country x
Population size 50,000,000
Full time students 4,200,000
Not employed & not searching 6,000,000
Not employed and searching 2,336,000
Employed 29,664,000
Labour force is defined as the population of the economy currently engaged in some employment and those jobless but available or searching for employment
Labour force is 32,000,000
Labor force participation rate is the labor force divided by the population size.
= 64%
Unemployment rate is defined as members of a country not employed and are searching or seeking employment.
= 4.7%
Answer:
The correct answer is D.
Explanation:
Giving the following information:
Sales=$775000
Variable expenses= 523000
Contribution margin= 252000
Fixed expenses= 132000
Net income= $120000
Hard Rubber:
Sales=$65000
Variable expenses=58000
Contribution margin= 7000
Fixed expenses= 22000
Net income= -15000
New net income= 120,000 + 15,000 - 22,000= 113,000
Answer:
The quadrilateral is drawn above
Answer:
When ATC curve is decreasing, we know that the MC curve is
below the ATC curve, and when the ATC curve is increasing, we know that MC is above the ATC curve
Explanation:
ATC refers to average total cost and MC refers to marginal cost, these both curve derive from total cost when MC is below ATC curve it shows that MC is less than ATC at that point ATC is falling.
Likewise, when MC is above ATC curve it shows MC is grater than ATC curve and at that point ATC is rising.
furthermore, when MC is equal to ATC at that point ATC is at minimum point.
