what are the effects of leveling income inequality on developing states in the 21st century?

(answer in 200 word paragraph)

You are given the sample mean and the population standard deviation. Use this information to construct the​ 90% and​ 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If​ convenient, use technology to construct the confidence intervals. A random sample of 60 home theater systems has a mean price of ​$118.00. Assume the population standard deviation is ​$19.60. Construct a​ 90% confidence interval for the population mean.

The​ 90% confidence interval is ​( nothing​, nothing​). ​(Round to two decimal places as​ needed.)

Construct a​ 95% confidence interval for the population mean.

The​ 95% confidence interval is ​( nothing​, nothing​). ​(Round to two decimal places as​ needed.)

Interpret the results. Choose the correct answer below

A. With​ 90% confidence, it can be said that the population mean price lies in the first interval. With​ 95% confidence, it can be said that the population mean price lies in the second interval. The​ 95% confidence interval is wider than the​ 90%.

B. With​ 90% confidence, it can be said that the sample mean price lies in the first interval. With​ 95% confidence, it can be said that the sample mean price lies in the second interval. The​ 95% confidence interval is wider than the​ 90%.

C. With​ 90% confidence, it can be said that the population mean price lies in the first interval. With​ 95% confidence, it can be said that the population mean price lies in the second interval. The​ 95% confidence interval is narrower than the​ 90%.

Do people eat more of a snack food when the food is labeled as low-fat? Do people pay attention to serving size? The answer may depend on whether the snack food is labelled low-fat and whether the label includes serving-size information. A study investigated these two questions using staff, grad students, and undergrad students at a large university as subjects.   
Subjects were asked to evaluate a pilot episode for an upcoming TV show at a theater on campus and were given a bag of granola from a respected campus restaurant. They were told to enjoy as much or as little of the granola as they wanted. Each granola bag had two labels: Twenty subjects were assigned to each treatment, and their granola bags were weighed at the end of the session to determine how much granola was eaten.

a) Is the study an observational study or an experiment? Specifically in this study (do not give general definitions),

what are the b) experimental units (abbreviated EU, also called individuals or subjects)

c) response variable and whether it is quantitative or categorical

d) How many factors were there and what were they?

e) How many treatments were there and what were they?

f) How many experimental units were in the study?

Microeconomics

Marginal Productivity and the Law of Diminishing Marginal Returns

You have recently been hired to manage a movie theater. You observe that there are many customers waiting around the concession area to buy snacks. You also observe that there is only one clerk working the counter. This employee has to do everything from get the popcorn going, stocking condiments and supplies, changing the soda canister when the syrup runs out for fountain drinks, helping customers, fill orders, collect cash, and of course, smile at the customers who have waited lengthy periods of time.

You obtain a report that shows the average sales per weekend night are $500 with one clerk. You decide to hire another clerk for the shift and sales increase to $1,000. You add one more clerk, and sales increase to $1,700. Again, you add another clerk, and sales increase to $1,900. Finally you add one more clerk, and sales increase to $2,000.

1.         Calculate the marginal product associated with each clerk. Draw a table to do this.

2.         At what point did the law of diminishing marginal return become evident?

3.         Why did the marginal product increase as more clerks were added initially?

4.         Why did the marginal product start to diminish?

Recently, Verizon Wireless ran a pricing trial in order to estimate the elasticity of demand for its services. The manager selected three states that were representative of its entire service area and increased prices by 5 percent to customers in those areas. One week later, the number of customers enrolled in Verizon’s cellular plans declined 4 percent in those states, while enrollments in states where prices were not increased remained flat. The manager used this information to estimate the own-price elasticity of demand and, based on her findings, immediately increased prices in all market areas by 5 percent in an attempt to boost the company’s 2016 annual revenues. One year later, the manager was perplexed because Verizon's 2016 annual revenues were 10 percent lower than those in 2015—the price increase apparently led to a reduction in the company’s revenues. Did the manager make an error? Explain.

Recently, Verizon Wireless ran a pricing trial in order to estimate the elasticity of demand for its services. The manager selected three states that were representative of its entire service area and increased prices by 5 percent to customers in those areas. One week later, the number of customers enrolled in Verizon’s cellular plans declined 4 percent in those states, while enrollments in states where prices were not increased remained flat. The manager used this information to estimate the own-price elasticity of demand and, based on her findings, immediately increased prices in all market areas by 5 percent in an attempt to boost the company’s 2016 annual revenues. One year later, the manager was perplexed because Verizon's 2016 annual revenues were 10 percent lower than those in 2015—the price increase apparently led to a reduction in the company’s revenues. Did the manager make an error? Explain.

Recently, Verizon Wireless ran a pricing trial in order to estimate the elasticity of demand for its services. The manager selected three states that were representative of its entire service area and increased prices by 5 percent to customers in those areas. One week later, the number of customers enrolled in Verizon’s cellular plans declined 4 percent in those states, while enrollments in states where prices were not increased remained flat. The manager used this information to estimate the own-price elasticity of demand and, based on her findings, immediately increased prices in all market areas by 5 percent in an attempt to boost the company’s 2016 annual revenues. One year later, the manager was perplexed because Verizon's 2016 annual revenues were 10 percent lower than those in 2015—the price increase apparently led to a reduction in the company’s revenues.

Did the manager make an error? Explain.

Recently, Verizon Wireless ran a pricing trial in order to estimate the elasticity of demand for its services. The manager selected three states that were representative of its entire service area and increased prices by 5 percent to customers in those areas. One week later, the number of customers enrolled in Verizon’s cellular plans declined 4 percent in those states, while enrollments in states where prices were not increased remained flat. The manager used this information to estimate the own price elasticity of demand and, based on her findings, immediately increased prices in all market areas by 5 percent in an attempt to boost the company’s 2012 annual revenues. One year later, the manager was perplexed because Verizon’s 2012 annual revenues were 10 percent lower than those in 2011—the price increase apparently led to a reduction in the company’s revenues. Did the manager make an error? Explain.

Let {Xn|n ≥ 0} is a Markov chain with state space S = {0, 1, 2, 3}, and transition probability matrix (pij ) given by   2 3 1 3 0 0 1 3 2 3 0 0 0 1 4 1 4 1 2 0 0 1 2 1 2   Determine all recurrent states. Q3. Let {Xn|n ≥ 0} is a Markov chain with state space S = {0, 1, 2} and transition probability matrix (pij ) given by   2 3 1 3 0 1 3 2 3 0 0 1 4 3 4   Determine all transient states. Q4. Classify the states {1, 2, 3} of the Markov chain with transition matrix   1 3 1 3 1 3 1 2 0 1 2 2 3 0 1 3 

The return on shares of Valley Transporter is predicted under the following various economic conditions: Recession -0.12 Normal +0.09 Boom +0.20 If each economy state has the same probability of occurring, what is the variance of the stock?

The return on shares of the Orange Company are predicted under the following states of nature. The states of nature are all equally likely, and because there are a total of three states, each state has a 33.333% chance of occurring.

Recession -0.11
Normal +0.05
Boom +0.24

What is the standard deviation of Orange?

Toyota Corp.'s stock is $32 per share. Its expected return is 24% and variance is 12%. Honda Corp.'s stock is $20 per share. Its expected return is 19% and variance is 7%. Benz Corp.'s stock is $45 per share. Its expected return is 12% and variance 7%. What would be the expected return of a portfolio consisting of 50% Toyota and 50% Honda?