A student is writing a research paper about the poetry of the Harlem Renaissance. Which style guidelines will the student most l
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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,
The ABC's dividend yield when the ABC reports dividends per share of $1.40 and net income for the year of $140,000. The current stock price is $14.00 is 10%.
<h3>What is yield?</h3>The yield on a security is defined as the measurement of the ex-ante instrument to a safety holder in financing.
It is a cardinal part of the return on an investment, with some other being the change in the security's market price.
The formula of calculating the yield is:
According to the given information,
Dividend Per Share= $1.40,
Net Income= $1,40,000
Current Price= $14
Now, apply the formula in the given formula,
Therefore, ABC's dividend yield is 10%.
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