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A researcher is interested in estimating the salary of management majors. it is known that the population of salary offers is normally distributed with a standard deviation of 4(in thousands of dollars). the sample yields a sample mean of 50.
1. construct a 95% confidence interval for the mean salary of management majors?
2.interpret the confidence interval you found in a).
3. it the confidence interval still valid if the population of salary offers is not normally distrotion.
suppose in 2010, the cost of a market basket of goods was $2001. In 2012, the cost fo the same amrket basket of goods was $2,105. Calculate the price index for 2012, using the price index formula, asume 2010 is the base year________
As a dentist you find that a person's annual demand curve for appointments are P=500-50Q. The marginal cost for your service is $50 There are three ways you could charge for your services -Charge $50 each time someone makes an appointment -Sell an an..
At a particular academically challenging high school, the average GPA of a high school senior is known to be normally distributed with a variance of 0.25. A sample of 20 seniors is taken and their average GPA is found to be 2.71
Abby consumes only apples. In year 1, red apples cost $1 each, green apples cost $2 each, and Abby buys 5 red apples and 2 green apples. In year 2, red apples cost $2, green apples cost $1, and Abby buys 1 red apple and 7 green apples. Compute a ..
adding a turning lane to a busy intersection will cost 2 million dollars, but it is estimated that it will save motorists a total of 300000 dollars a year for the next 10 years. a government agency wants to know if the annual benefits outweight ..
Calculate the optimal amount of pretzels and soft drinks that minimizes this firm's costs and how many frames do you provide each month?
Amy has $12 a week to go spend on coffee and pop. The Price of coffee is $2 a cup, and pop is $1 a can. Draw a graph of Amy's budget line. Can Amy buy 7 cans of pop and 2 cups of coffee a week? Can she buy 7 cups of coffee and 2 cans of pop a week..
What is the Marginal cost of one more passenger on a 1,200 mile flight if there are between 250-300 passengers. If the number of passengers is 300 and the flight is between 1,200 and 2,500 miles, what is the marginal cost of flying an additional mi..
.What are the equlibrium quantities (q1, q2 %u2026 ,q10)?. A-q1, q2 %u2026 ,q10 = 2B-q1, q2, %u2026 ,q9= 2 q10=1/2c-q1, q2, %u2026 ,q9= 3/2 q10=1/2d-q1, q2, %u2026 ,q9, q10= 3/2e- q1, q2, %u2026 ,q9= 3/4 q10=1/2f-q1, q2, %u2026 ,q9= 3 q10=1/2g-non..
Determine unemployment in the cattle Industry. Explain a current status of unemployment in the Cattle Industry.
May Brothers Department Store has constructed a survey to learn purchasing intentions of a sample of sixty-two department store customers.
Wilpen Corporation, a price-setting form, manufactures nearly 80% of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the linear specifications:
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