1. Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.

A sample of 65 stocks traded on the NYSE that day showed that 28 went up.

You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of α=0.01α=0.01.

What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =

What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =

The p-value is...

• less than (or equal to) αα
• greater than αα

This test statistic leads to a decision to...

• reject the null
• accept the null
• fail to reject the null

As such, the final conclusion is that...

• There is sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3.
• There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3.
• The sample data support the claim that the proportion of stocks that went up is is more than 0.3.
• There is not sufficient sample evidence to support the claim that the proportion of stocks that went up is is more than 0.3.

2. You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to patients with the flu and say that nausea is a side effect if people become nauseous. This is because nausea is common for people who have the flu. From past studies you know that about 30% of people who get the flu experience nausea. You collected data on 1685 patients who were taking Tamiflu to relieve symtoms of the flu, and found that 553 experienced nausea. Use a 0.01 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is greater than 30%.  

a) Identify the null and alternative hypotheses?

H0 Select an answer p = p ≠ p < p > p ≤ p ≥ μ = μ ≠ μ < μ > μ ≤ μ ≥  

H1:  Select an answer p = p ≠ p < p > p ≤ p ≥ μ = μ ≠ μ < μ > μ ≤ μ ≥  

b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)?

• left-tailed
• right-tailed
• two-tailed

c) Identify the appropriate significance level.


d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two decimal places.


e) Calculate your p-value. Write the result below, and be sure to round your final answer to four decimal places.


f) Do you reject the null hypothesis?

• We reject the null hypothesis, since the p-value is less than the significance level.
• We reject the null hypothesis, since the p-value is not less than the significance level.
• We fail to reject the null hypothesis, since the p-value is less than the significance level.
• We fail to reject the null hypothesis, since the p-value is not less than the significance level.

g) Select the statement below that best represents the conclusion that can be made.

• There is sufficient evidence to warrant rejection of the claim that the percentage of people who experience nausea is greater than 30%.
• There is not sufficient evidence to warrant rejection of the claim that the percentage of people who experience nausea is greater than 30%.
• The sample data support the claim that the percentage of people who experience nausea is greater than 30%
• There is not sufficient sample evidence to support the claim that the percentage of people who experience nausea is greater than 30%

h) Can we conclude that nausea a side effect of Tamiflu?

• Yes
• No

1. Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.

A sample of 65 stocks traded on the NYSE that day showed that 28 went up.

You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of α=0.01α=0.01.

What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =

What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =

The p-value is...

• less than (or equal to) αα
• greater than αα

This test statistic leads to a decision to...

• reject the null
• accept the null
• fail to reject the null

As such, the final conclusion is that...

• There is sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3.
• There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3.
• The sample data support the claim that the proportion of stocks that went up is is more than 0.3.
• There is not sufficient sample evidence to support the claim that the proportion of stocks that went up is is more than 0.3.

2. You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to patients with the flu and say that nausea is a side effect if people become nauseous. This is because nausea is common for people who have the flu. From past studies you know that about 30% of people who get the flu experience nausea. You collected data on 1685 patients who were taking Tamiflu to relieve symtoms of the flu, and found that 553 experienced nausea. Use a 0.01 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is greater than 30%.  

a) Identify the null and alternative hypotheses?

H0 Select an answer p = p ≠ p < p > p ≤ p ≥ μ = μ ≠ μ < μ > μ ≤ μ ≥  

H1:  Select an answer p = p ≠ p < p > p ≤ p ≥ μ = μ ≠ μ < μ > μ ≤ μ ≥  

b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)?

• left-tailed
• right-tailed
• two-tailed

c) Identify the appropriate significance level.


d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two decimal places.


e) Calculate your p-value. Write the result below, and be sure to round your final answer to four decimal places.


f) Do you reject the null hypothesis?

• We reject the null hypothesis, since the p-value is less than the significance level.
• We reject the null hypothesis, since the p-value is not less than the significance level.
• We fail to reject the null hypothesis, since the p-value is less than the significance level.
• We fail to reject the null hypothesis, since the p-value is not less than the significance level.

g) Select the statement below that best represents the conclusion that can be made.

• There is sufficient evidence to warrant rejection of the claim that the percentage of people who experience nausea is greater than 30%.
• There is not sufficient evidence to warrant rejection of the claim that the percentage of people who experience nausea is greater than 30%.
• The sample data support the claim that the percentage of people who experience nausea is greater than 30%
• There is not sufficient sample evidence to support the claim that the percentage of people who experience nausea is greater than 30%

h) Can we conclude that nausea a side effect of Tamiflu?

• Yes
• No

I just want some ideas on how to write this essay, for instance, explanation of the case and what are some possible solution. thanks

“What Should I do, my friend?”

A former classmate of yours, Liz Theranos, has landed an internship position in the accounting department at Brompton Travels, a small closely held company. She tells you at one of your regular get-togethers at the local coffee shop, that she is excited and anxious to make a good impression as an accounting intern with the company because she wants to be offered a fulltime job at this company when she completes her internship.

The company’s operations are all related to tourism, and it has, as its principal asset, a large ocean front hotel. The company is primarily owned by the two directors who are brothers. Both of the brothers are actively engaged in the day-to-day running of the business. Liz gets along well with the directors and the small accounting staff even though she is only employed as an intern. Liz also is aware that the company had faced some serious cash flow difficulties shortly before she was appointed as an accounting intern. However, since Liz Theranos started working with the head accountant a remortgaging arrangement has, apparently, eased the financial pressure.

Recently, one of the managing brothers comes to Liz with a company check for $5,040 made payable to a design company, which he has already signed. Since the head accountant is currently on vacation for the next two weeks, and the internal policy requires that checks over $2,500 be signed by the head accountant and a director, he asks for Liz’s counter-signature. He explains that it is the deposit for the design work and furnishings for some of the hotel bedrooms. There is a formal invoice from a design studio, but you are still surprised as the head accountant before leaving on vacation had not made you aware that any such outlays had been planned. Nevertheless, given the explanation by the director and the supporting invoice, you counter-sign the check.

Later that day, out of curiosity, Liz decides to do some research into the design studio. She finds that the design company that has had a high level of indebtedness in the past. Liz also sees that the company secretary appears to be the daughter of one of the directors for whom she works. Two days later, the same managing director comes to you with another check, this time for $26,500, again needing only your counter-signature. There is a supporting invoice from the same design studio. You are hesitant, and the managing director seeing your hesitancy, explains that he is only asking you to counter-sign the check because the head accountant is still on vacation. He says that it is important to submit the check promptly so that it may be banked before April 15th. You ask why there is such urgency, particularly as there is no evidence of any design work having started. The managing director laughs and replies that the money should be 4/18 back in the hotel’s bank account by June 1 st . He further adds that the checks are needed urgently to settle some outstanding directors’ loan accounts at the design studio. Once again he asks you to not worry because the money should be returned to the hotel company account soon. Liz, once again reluctantly countersigns the check

Liz Theranos, your friend, whom you recall as always having high principles and Integrity, calls you to meet for coffee because she needs to speak confidentially with a good friend about something at work that’s bothering her. You agree to meet Liz for coffee.

Over coffee Liz shares with you the situation described above. Both you and Liz, recall Prof. Woods’ ethics class that you took in college and continue discussing how one can act honestly with regard to the dilemma posed by the recent director’s request and accounting functions at Liz Theranos’ employer? You immediately suggest to Liz that she should immediately quit. Liz tells you that she has seriously thought about quitting. However, besides needing the income, she has decided to stay because she really wants to get a full-time position with the company. The hotel/travel industry is the industry she really wants to work in as an accountant and after a couple of year’s full-time employment with Brompton Travel she would be in an ideal position to move on by getting a job with one of the major hotel chains. After a long stare, you tell her you understand and will help her structure a response that deals with the dilemma

Required:

? Help your friend Liz Theranos, who is just an intern at the company, deal with this ethical issue.

? Within a professional, word typed, 11-12 fonts, single-line spaced document

? Explain the ethical issues and how she should respond and, possible ramifications of Liz responding to this issue.

? Your final paper must be between 500-700 words.

Question 37

1. A monopolist maximizes profits by

   	a.	producing an output level where marginal revenue equals marginal cost.
   	b.	charging a price equal to marginal revenue and marginal cost.
   	c.	charging a price where marginal cost equals average total cost.
   	d.	Both a and b are correct.

Question 38

1. A monopoly is an inefficient way to produce a product because

   	a.	it faces a downward-sloping demand curve.
   	b.	it can earn both short-run and long-run profits.
   	c.	the cost to the monopolist of producing one more unit exceeds the value of that unit to potential buyers.
   	d.	it produces a smaller level of output than would be produced in a competitive market.

Question 39

1. A movie theater can increase its profits through price discrimination by charging a higher price to adults and a lower price to children if it

   	a.	can prevent children from buying the lower-priced tickets and selling them to adults.
   	b.	has some degree of monopoly pricing power.
   	c.	can easily distinguish between the two groups of customers.
   	d.	All of the above are correct.

You and your closest friends have decided to go to see a private screening of a movie at a local movie theater where you can be socially distant. Friends will be added to the queue after their names are input by the user. Because of current restrictions, the queue (line) for tickets can only have a capacity of 7 people.

Write a Java program using a Queue (of size 7) that will display a menu:

1) add person to line

2) remove person from line

When (1) is chosen the user will be prompted to input the friend's name. Note that you must not add another person to the queue until there is an available space for them (you will need to check if the queue is full before adding people.) If there are already 7 people in the queue the program will output that "the line is full please try again later."

When (2) is chosen the person at the head/front of the queue is removed.

After each person is added or removed from the queue, output the contents of the queue and the name of the person at the head of the queue. The program will end after the removal of a person leaves the queue empty.

MUST BE JAVA. please include menu for queue operations.

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and pre-preview ads before the movie starts. Many complain that the time devoted to previews is too long.† A preliminary sample conducted by The Wall Street Journal showed that the standard deviation of the amount of time devoted to previews was 6 minutes. Use that as a planning value for the standard deviation in answering the following questions. (Round your answers up to the nearest whole number.)

(a)

If we want to estimate the population mean time for previews at movie theaters with a margin of error of 105 seconds, what sample size should be used? Assume 95% confidence.

(b)

If we want to estimate the population mean time for previews at movie theaters with a margin of error of 1 minute, what sample size should be used? Assume 95% confidence.

-You may need to use the appropriate appendix table or technology to answer this question.

How large a sample should be selected to provide a 95% confidence interval with a margin of error of 10? Assume that the population standard deviation is 50. (Round your answer up to the nearest whole number.)

Companies can use three strategies to lower their breakeven point: 1. Increase selling price; 2. Decrease variable costs; 3. Decrease fixed costs. Thinking in terms of cost structure and breakeven point, explain how a movie theater might respond to a negative demand shock (a sudden significant drop in demand as a result of external events) such as happened after the September 11^th attack on the World Trade Center, Superstorm Sandy, etc.

• Your answer must specifically address each of the three strategies outlined above, and assess whether or not that strategy would be successful. (6 points)
  • BE SPECIFIC. You must indicate exactly how you would raise selling price or which specific variable/fixed costs you are recommending that the company decrease. While you may look at online sources to learn more about the industry, DO NOT copy information without providing proper citations. Also, you must include original information; do not rely solely on online sources.
• Finally, you must make a recommendation as to the best strategy, explaining why you chose it.

a) The 10 members of the committee have to choose one president and two vice presidents (these have to be three different people). In how many ways can they choose these officers? (Note: here is no distinction between the two vice presidents; there is not a “first” VP and a “second” VP).

b) Three couples go to a movie theater. They sit in consecutive seats such that each couple is seating together, that is each person is seating next to his/her partner. If there are 6 seats available, in how many ways can they sit?

c) A university wants to assign a three digit number to each classroom of a new building. They can use the digits {1,2,3,4,5} but they cannot use any digit more than once. How many classroom numbers can they assign if the numbers have to be less than 250?

d) The University wants to select 4 students for a feedback survey. They want all four students from either Prof. X’s section or Prof. Y’s section. Prof. X has 40 students in his class and Prof. Y has 30 students in his class. How many selections are possible?

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 40 home theater systems has a mean price of ​$129.00. Assume the population standard deviation is ​$16.60.

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 narrower 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 wider than the​ 90%.

The values of Alabama building contracts (in millions of dollars) for a 12-month period follow:

240 350 230 260 280 320 220 310 240 310 240 230

a. Construct a time series plot. What type of pattern exists in the data?

b. Compare a three-month moving average forecast with an exponential smoothing forecast. Use alpha =0.2 Which provides the better forecasts based on MSE?

c. What is the forecast for the next month?