A company has taken a sample of its monthly revenues and expenses in thousands of dollars...
A company has taken a sample of its monthly revenues and expenses in thousands of dollars over the last two years. The average monthly revenues was 100 and the average monthly expenses was 80. The standard deviation of the monthly revenues was 10 and of the monthly expenses was 6. The covariance between revenues and expenses was 7.5. The profit is revenues less expenses. What is the standard deviation of monthly profit in thousands of dollars? Round your answer to three decimal places.
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A company has taken a sample of its monthly revenues and
expenses in thousands of dollars...
A company has data for each of the last eleven months on revenues in millions of...
A company has data for each of the last eleven months on revenues in millions of dollars (2, 2, 3, 5, 6, 5, 4, 7, 5, 8, 8) and expenses in millions of dollars (1, 1, 2, 1, 3, 4, 4, 5, 3, 4, 5). Calculate the covariance between revenues and expenses for this sample. Round your answer to three decimal places.
Firm A Revenues and Costs Thousands of Dollars Firm B Revenues and Costs Thousands of Dollars...
Firm A Revenues and Costs Thousands of Dollars Firm B Revenues and Costs Thousands of Dollars 280 Total otal Costs Total Costs 28 Total 240 20 - 160 120 240 200 160 120 80 40 Breakeven Point (30 240) Breakeven Point 122222, 188 889) l Fixed Costs Foed Costs 80 40 0 10 20 30 40 50 60 Unts (Thousands) 0 10 20 30 40 50 60 Units (Thousands) a. Given the graphs above, calculate the total foxed costs, variable...
Listed below are the salaries, in thousands of dollars, for a sample of 15 chief financial...
Listed below are the salaries, in thousands of dollars, for a
sample of 15 chief financial officers in the electronics
industry:
Listed below are the salaries, in thousands of dollars, for a sample of 15 chief Tinancial officers in the electronics industry $527.0 540.0 552.0 552. 587.0 492.0 564.0 517.0 500 . 492.0 565.0 545.0 587.0 507.0 498.0 a. Determine the mean, the median, and the standard deviation. (Round the final answers to 2 decimal places.) Mean 5.00 Medan 55200...
A small company of science writers found that its rate of profit (in thousands of dollars)...
A small company of science writers found that its rate of profit (in thousands of dollars) after t years of operation is given by the function below P'(t) = (6t+6)(?? +21+2) a. Find the total profit in the first three years. b. Find the profit in the fourth year of operation c. What is happening to the annual profit over the long run? a. The profit in the first three years is $ (Round to the nearest dollar as needed.)
A small company of science writers found that its rate of profit (in thousands of dollars)...
A small company of science writers found that its rate of
profit (in thousands of dollars) after t years of operation is
given by the function below. a. Find the total profit in the first
three years. b. Find the profit in the fourth year of operation. c.
What is happening to the annual profit over the long run?
A small company of science writers found that its rate of profit (in thousands of dollars) after t years of operation...
Listed below are the salaries, in thousands of dollars, for a sample of 15 chief financial...
Listed below are the salaries, in thousands of dollars, for a sample of 15 chief financial officers in the electronics industry: $554.0 577.0 498.0 540.0 509.0 582.0 534.0 497.0 523.0 581.0 559.0 506.0 493.0 543.0 499.0 a. Determine the mean, the median, and the standard deviation. (Round the final answers to 2 decimal places.) Mean Median Standard deviation b. Determine the coefficient of skewness. (Round the final answer to 3 decimal places.) Coefficient of skewness
Sample annual salaries (in thousands of dollars) for employees at a company are listed. 55 42 ...
Sample annual salaries (in thousands of dollars) for employees at a company are listed. 55 42 46 58 29 29 55 42 46 26 58 55 50 (b) Each employee in the sample is given a 6% raise. Find the sample mean and sample standard deviation for the revised data set. (c) To calculate the monthly salary, divide each original salary by 12. Find the sample mean and sample standard deviation for the revised data set. (d) What can...
A small company of science writers found that its rate of profit (in thousands of dollars)...
A small company of science writers found that its rate of profit (in thousands of dollars) after t years of operation is given by the function below. 3 P'(t) = (5t + 5)(2+ + 2 +2) a. Find the total profit in the first three years. b. Find the profit in the fourth year of operation. c. What is happening to the annual profit over the long run?
Annual income: The mean annual income for people in a certain city in thousands of dollars)...
Annual income: The mean annual income for people in a certain city in thousands of dollars) is 41, with a standard deviation of 35. A pollster draws a sample of 91 people to interview. Part 1 of 5 (a) What is the probability that the sample mean income is less than 37? Round the answer to at least four decimal places. The probability that the sample mean income is less than 37 is Part 2 of 5 (b) What is...
A company decides to investigate the amount of sick leave taken by its employees. A sample...
A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year 0140072 Use this information to answer parts a through c. a. Find and interpret the range. The range is 7 days. Choose the correct interpretation of the range below A. The number of days separating the fewest and most sick days taken is equal to the range....
Firm A Revenues and Costs Thousands of Dollars Firm B Revenues and Costs Thousands of Dollars 280 Total otal Costs Total Costs 28 Total 240 20 - 160 120 240 200 160 120 80 40 Breakeven Point (30 240) Breakeven Point 122222, 188 889) l Fixed Costs Foed Costs 80 40 0 10 20 30 40 50 60 Unts (Thousands) 0 10 20 30 40 50 60 Units (Thousands) a. Given the graphs above, calculate the total foxed costs, variable...
Listed below are the salaries, in thousands of dollars, for a
sample of 15 chief financial officers in the electronics
industry:
Listed below are the salaries, in thousands of dollars, for a sample of 15 chief Tinancial officers in the electronics industry $527.0 540.0 552.0 552. 587.0 492.0 564.0 517.0 500 . 492.0 565.0 545.0 587.0 507.0 498.0 a. Determine the mean, the median, and the standard deviation. (Round the final answers to 2 decimal places.) Mean 5.00 Medan 55200...
A small company of science writers found that its rate of profit (in thousands of dollars) after t years of operation is given by the function below P'(t) = (6t+6)(?? +21+2) a. Find the total profit in the first three years. b. Find the profit in the fourth year of operation c. What is happening to the annual profit over the long run? a. The profit in the first three years is $ (Round to the nearest dollar as needed.)
A small company of science writers found that its rate of
profit (in thousands of dollars) after t years of operation is
given by the function below. a. Find the total profit in the first
three years. b. Find the profit in the fourth year of operation. c.
What is happening to the annual profit over the long run?
A small company of science writers found that its rate of profit (in thousands of dollars) after t years of operation...
A small company of science writers found that its rate of profit (in thousands of dollars) after t years of operation is given by the function below. 3 P'(t) = (5t + 5)(2+ + 2 +2) a. Find the total profit in the first three years. b. Find the profit in the fourth year of operation. c. What is happening to the annual profit over the long run?
Annual income: The mean annual income for people in a certain city in thousands of dollars) is 41, with a standard deviation of 35. A pollster draws a sample of 91 people to interview. Part 1 of 5 (a) What is the probability that the sample mean income is less than 37? Round the answer to at least four decimal places. The probability that the sample mean income is less than 37 is Part 2 of 5 (b) What is...
A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year 0140072 Use this information to answer parts a through c. a. Find and interpret the range. The range is 7 days. Choose the correct interpretation of the range below A. The number of days separating the fewest and most sick days taken is equal to the range....
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