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This question is based on the following information for ice cream: At the same time that a decrease in demand for ice cream occurs during the wintertime, a new supplier enters the market which increases the supply of ice cream. From these events, we can predict that




This question is based on the following information for ice cream: At the same time that a decrease in demand for ice cream occurs during the wintertime, a new supplier enters the market which increases the supply of ice cream. From these events, we can predict that


  •  A. the equilibrium price and the equilibrium quantity will be higher.
  •  B. the equilibrium price will be lower while the change in equilibrium quantity is uncertain.
  •  C. the equilibrium quantity will be higher while the change in equilibrium price is uncertain.
  •  D. the equilibrium price will be higher while the change in equilibrium quantity is uncertain.

a technological advancement for good A will shift_curve of good A to the _ leading to a _ in the equilibriun price


at the same time that a decrease in the demand for ice cream occurs during the wintertime, a new supplier enter the market which increases the supply of ice cream


Ahmad wants to deposit money for 5 years starting 4 years from now so she can withdraw $50,000 twelve years from now, Assume the interest rate is 10% per year. The annual deposit is closest to:(please answer correctly)??


Calculate the equivalent annual cost in years 1 through 9 of the following series of disbursements. Use an interest rate of 10% per year.

10 9 8 7 6 5 4 3 2 1 Year

55 60 65 70 75 80 85 90 90 90 Cash flow

A. $ 424.49

B. $ 404.49

C. $ 434,49

D. $ 414.49


Calculation on Population Mean: σ Known/unknown

1.     Wall Street securities firms paid out record year-end bonuses of $125,500 per employee for 2005 (Fortune, February 6, 2006). Suppose we would like to take a sample of employees at the Jones & Ryan securities firm to see whether the mean year-end bonus is different from the reported mean of $125,500 for the population.

 

A.   State the null and alternative hypotheses you would use to test whether the year-end bonuses paid by Jones & Ryan were different from the population mean.

B.    Suppose a sample of 40 Jones & Ryan employees showed a sample mean year-end bonus of $118,000. Assume a population standard deviation of σ =$30,000 and compute the p-value.

C.     With α = .05 as the level of significance, what is your conclusion?

D.   Repeat the preceding hypothesis test using the critical value approach.

 


Calculation on Population Mean: σ Known/unknown

 

1.     In a study entitled How Undergraduate Students Use Credit Cards, it was reported that undergraduate students have a mean credit card balance of $3173 (Sallie Mae, April 2009). This figure was an all-time high and had increased 44% over the previous five years. Assume that a current study is being conducted to determine if it can be concluded that the mean credit card balance for undergraduate students has continued to increase compared to the April 2009 report. Based on previous studies, use a population standard deviation σ =$1000.

A.   State the null and alternative hypotheses

B.    What is the p-value for a sample of 180 undergraduate students with a sample mean credit card balance of $3325?

C.    Using a .05 level of significance, what is your conclusion?


1. Find the pearson correlation coefficient between sales (in thousands rupees) of the following.

FIRM 1 2 3 4 5 6 7 8 9 10


Sales 50 50 55 60 65 65 65 60 60 50

Expenses 11 13 14 16 16 15 15 14 13 13


2. Calculate the regression from the following data.

X 75 88 95 70 60 80 81 50


Y 120 134 150 115 110 140 142 100



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