Suppose the government taxes the wealthy at a higher rate than it taxes the poor and then develops programs to redistribute the tax revenue from the wealthy to the poor. This redistribution of wealth is a. is more efficient and more equal for society. b. is more efficient but less equal for society. c. is more equal but less efficient for society. is less equal and less efficient for society.
Bridget drinks three soda during a particular day. The marginal benefits she enjoys from drinking the third soda. a. can be thought of as the total benefit Bridget enjoys by drinking three sodas minus the total benefit she would have enjoyed by drinking just two sodas. b. determines Bridget's willingness to pay for the third soda. c. is likely different from the marginal benefit provided to Bridget by the second soda.
In: Economics
Please answer questions 6 - 10. Thank you.
6. What are the three major market indexes?
7. What is the difference between options and future contracts?
8. What determines the option price?
9. What is the difference between primary and secondary market for security sales?
10. What are market order, limit order, and stop order? Explain each one.
In: Finance
Three vectors are given as A=<3.5, -5.3, 1.1> B=<4.5, 7.5, -7> C=<-3.9, 4.8, -6>
a) Determine the angle between A and B.
b) Determine the angle between A and C
c) Compute the dot product of B and C
d) Determine the size of the area associated with vectors B and C.
e) Determine the quantity (B (dot)(A(cross)C))
In: Physics
Three deer, A, B, and C, are grazing in a field. Deer B is located 61.6 m from deer A at an angle of 52.2 ° north of west. Deer C is located 79.4 ° north of east relative to deer A. The distance between deer B and C is 91.4 m. What is the distance between deer A and C? (Hint: Consider the laws of sines and cosines given in Appendix E.)
In: Physics
(you will have to look up Newton's Universal Law of Gravitation and some values of mass and distance) and please list them with the solution.
Please answer in scientific notation and round to three significant figures.
In: Physics
Daily sales of bagels at a local bakery is a random variable normally distributed with a mean of $600 and a standard deviation of $60. If sales are $540, what is the value of z?
A credit card company found that its customers charge between $100 and $1,100 per month. If this random variable is uniformly distributed, the standard deviation of the monthly amount charged equals $____. Round your answer to the nearest cent.
A clothing store analyzed customer purchases over the past year and found them to be normally distributed with a mean of $110 and a standard deviation of $12. The probability that a randomly selected person spent between $87 and $138 at the store last year is ____% Round to two decimals.
A credit card company found that its customers charge between $100 and $1,100 per month. If monthly amount charged is uniformly distributed, the probability that a person charges less than $200 per month is ____%
An economics professor gives an A grade to any student scoring in the top 8.5% of her Principles of Economics class. If the scores are normally distributed with a mean of 70% and a standard deviation of 5%, the minimum grade a student must score to receive a grade of A is _____%. Round to two decimal places.
A random survey of adult Canadians indicated that the mean number of hours spent watching television per week was 9 with a standard deviation of 1.5 hours. If hours watching television per week is a normally distributed variable, the probability of randomly selecting a Canadian adult and finding that they watch somewhere between 10 and 12 hours of television per week is ____%. Round your answer to 2 decimal places.
The mean cholesterol level of 40 to 60-year-old women surveyed in a particular country was found to be 5 mmol/l with a standard deviation is 1 mmol/l. About 4% of all women in this age category would have a cholesterol level below _____ mmol/l? Leave two decimal places in your answer.
Suppose a train arrives at a stop every 30 minutes between 5 a.m. and 11:30 p.m. The time that a passenger will wait for the train is uniformly distributed from 0 to 30 minutes. The probability a passenger will wait more than 25 minutes is ____%. Round your answer to 2 decimal places.
In: Statistics and Probability
A survey has been conducted in canteen during the lunch time. The average number of customers arrived in a 5-minute interval is 8.
a) What is the probability that exactly 3 customers will arrive in a 2-minute interval?
b) What is the probability that less than 3 customers will arrive in a 4-minute interval?
c) What is the probability that more than 1 customers will arrive in a 30-second interval?
In: Statistics and Probability
Answer the questions below.
|
(a) A researcher measured the shoe size and math ability of a large group of children. He found that having a larger shoe size does not indicate that a child has more or less math ability. What does his analysis show? -There is no correlation between shoe size and math ability. -There is a correlation between shoe size and math ability. There may or may not be causation. Further studies would have to be done to determine this. -There is a correlation between shoe size and math ability. There is probably also causation. This is because there is likely an increase in math ability with an increase in shoe size. (b) A grocery store collected sales data. It found that when customers buy less bread, they tend to purchase more rice. What can we conclude? -There is no correlation between amount of bread bought and amount of rice purchased. -There is a correlation between amount of bread bought and amount of rice purchased. However, there is no causation. This is because there is an increase in the amount of rice purchased with a decrease in the amount of bread bought. -There is a correlation between amount of bread bought and amount of rice purchased. There may or may not be causation. Further studies would have to be done to determine this. (c) Joe compared the player statistics from his team's tennis season. He determined that being taller implies that a player has faster serves. What should he say based on his findings? -There is no correlation between height and serve speed. -There is a correlation between height and serve speed. There may or may not be causation. Further studies would have to be done to determine this. -There is a correlation between height and serve speed. However, there is no causation. This is because there is an increase in serve speed with an increase in height. |
In: Statistics and Probability
Jessica Simpson sets up shop to sell “Buffalo Wings.” She
observes that if the price drops from $3.50 per order to $2.50 per
order, her daily sales rise from 300 to 500 orders.
A. What is the price elasticity of demand for Jessica’s “Buffalo
wings?”
B. Which price yields the greater total revenue?
C. Jessica is considering adding a new product, widgets, to the
menu. She has experimented and discovered that a 10% increase in
the price of wings causes a 20% increase in the quantity of widgets
sold. What is the cross elasticity of demand between widgets and
wings? Are they complements or substitutes??
D. What is the difference between the price elasticity of demand
and the slope of the demand curve? Are they the same concept? Are
they even related concepts?
In: Economics
Determine the profit maximizing quantity and profit levels; and then graph (in general form) the outcomes for the production function ( standard form with q(K,L) curve ) , cost/revenue functions (with MC, AC, and P curve/line) and profit function ( profit (q) curve ) for the following all graphs have to display q*: 1. C(q)=1000+q^2, P=10000 2. C(q)=1000+4q^3, P=10000 3. C(q)=1000+q^1.5, P=10000 4. Explain the differences between your outcomes and give a plausible reason for the difference between 1 & 2 and then for 1 & 3. Specifically: what changed, what didn't, what the effects are, and why.
In: Economics