1. A statistician is interested in the gross earnings of several of her favorite bands. She took a random sample of 30 of the Rolling Stones’ North American concerts, and found that the gross earnings averaged $2.27 million with a standard deviation of $0.5 million. One source suggests that the average gross earnings per concert for every stadium performance in North America is $2.11 million. Do the Rolling Stones earn more on average? Test at a 5% level of significance

2. A survey was conducted about the cost for a family of four to visit an amusement park for one day. A sample of 32 families yielded an average cost of $190.28 with a standard deviation of $51.75. Last year, a magazine published that the average cost for a family of four to visit an amusement park was $175. Based on the sample data above, can we conclude that the mean cost is actually higher than this at α=.05

3. According to a large local high school, senior students have a mean GPA of 3.07. A random sample of 38 seniors taking AP courses showed a mean GPA of 3.29 with a standard deviation of 0.42. At the 1% level of significance, can it be stated that seniors taking AP courses have a different GPA than the senior class as a whole?

Pine rockland is an endangered ecosystem found only in South Florida. Invasive plant species threaten pine rockland by out competing the native plants and providing no nutritional value to native wildlife. The largest tract of pine rockland in Everglades National Park is at Long Pine Key. Scientists with the National Park Service are interested in knowing how effective different frequencies of prescribed burns are at removing invasive plant species. They measured the density (individuals/m²) of invasive plant species in an area that was not burned (no burn), an area that was burned once in the last 5 years (infrequent burn), and an area that was burned 5 times in the last 5 years (frequent burns). For each area, sampling was conducted by measuring the density at 20 random points.

Based on observations of these three areas and the need to decrease invasive species in these ecosystems, we could put forth the following question: How does the frequency of prescribed burns affect invasive plant species in pine rockland ecosystems?

1. For the study above, identify the following: (4 points)
   1. Population: All invasive Plant species in Pine Rockland Ecosystem.
   2. Sample: 20 random points in each area
   3. Parameter:
   4. Statistics
2. For the study above, identify the following: (3 points)
   1. Dependent Variable
   2. Independent Variable
   3. Is the independent variable categorical or numerical?

A) A person can take either of two routes to work, through Matteson or Richton Park. Both take on average 35 minutes, and travel times are Normally distributed. But are the variances of the travel times different? A random sample with n = 6 using the Matteson route, and another random sample with n = 7 using the Richton Park route, showed a variance of 40 (units: square minutes) and 30 respectively. To test whether the variances are different, the following test of hypothesis is to be carried out: H0: sigma subscript 1 superscript 2 space equals space sigma subscript 2 superscript 2 H1: sigma subscript 1 superscript 2 space not equal to space sigma subscript 2 superscript 2 To test this at 10% level of significance, what is the critical value for the test statistic? (Give two decimal places)

B) A supermarket claims that the average wait time at the checkout counter is less than 9 minutes. We can assume that the population is Normally distributed.

Consider

H0: mu >= 9

H1: mu < 9

A random sample of 50 customers yielded an average wait time of 8.5 minutes and a standard deviation of 2.5 minutes.

What is the value of the test statistic (tstat or t-sub-xbar)?

(Provide two decimal places)

This problem has several parts journalizing adjusting entries, preparing a ledger using T accounts, adjusted trial balance, income statement, retained earnings statement, classifed balance sheet and determine which accounts to close at end of the month. HELP!!!!

The Pharoah Hotel opened for business on May 1, 2022. Here is its trial balance before adjustment on May 31.

Other data:

Posa Hotels, Inc., has a sixth night free policy. Every sixth night a guest stays at the hotel is free. Because not all guests stay enough nights to earn a free stay, on average the number of free nights redeemed is 70% of the maximum possible number of free nights available one obtains by dividing the total number of paid nights the hotel has had by 5. Rooms at Posa Hotels cost $300 per night. In 2019, Posa had a total of 100,000 paid room-nights and collected a total of $30 million from customers. Also in 2019, customers redeemed a total of 10,000 free room-nights. Some of the room-nights awarded were based on customers paid nights from previous years and some were based on paid nights from the current year. Required: Prepare journal entries to record revenue for 2019 for Posa. (If no entry is required for a particular transaction, select "No journal entry required" in the first account field. Do not round intermediate calculations. Round your answers to the nearest whole dollar amount.) 1)Prepare the entry to record the revenue recognized for the nights paid by customers. 2)Prepare the entry to record the revenue recognized for the free nights redeemed by customers.

8. The Smart CPA firm held an End of Tax Season party. The company expected attendance of 75 people and prepared the following budget:

Hotel room rental $600
Food 1,000
Entertainment 750
Decorations 250
Total Costs $2,600

Seventy five people attended the party. The following costs were incurred:

Hotel room rental $600
Food 1,150
Entertainment 750
Decorations 350
Total Costs $2,850

What is the variance for total costs?
A) $300 Unfavorable
B) $300 Favorable
C) $250 Favorable
D) $250 Unfavorable

9. The various stages through which a product passes are called the ________.
A) product life cycle
B) value chain
C) performance plan
D) product performance plan

10. Research and development is the function of a value chain that involves ________.
A) the detailed design and engineering of products, services or processes
B) the generation of ideas related to new products only
C) the generation of ideas related to new products, services or processes
D) the detailed design and engineering of new processes

11. Which of the following is a major factor causing changes in management accounting today?
A) additional value chain functions
B) small advances in technology
C) increased global competition
D) shift to manufacturing-based economy

Marilyn Helm Retailers is attempting to decide on a location for a new retail outlet. At the​ moment, the firm has three​ alternatives: stay where it is but enlarge the​ facility; locate along the main street in nearby Newbury​; or locate in a new shopping mall in Hyde Park.

The company has selected the four factors listed in the following table as the basis for evaluation and has assigned weights as​ shown:

​a) Based on the given​ information, the best location for Marilyn Helm Retailers is to open the new retail outlet in _____, with a total weighted score of_____​(Enter your response rounded to two decimal​ places.)

​b) A new subway station is scheduled to open across the street from the present location in about a​ month, so its third factor score should be raised to 75. Then, the best location for Marilyn Helm Retailers is to open the new retail outlet in ______, with a total weighted score of ____.(Enter your response rounded to two decimal​places.)

(must be done in JAVA code)

A company dedicated to parking management has decided to renew itself by automating its control process since this process is done manually. The company has hired its development team to automate the process and gave it an October 19th deadline until 6 pm. An analyst defined the system requirements as follows:

1. The system must allow configuring the number of spaces that a vehicle parking lot will contain.

2. The system must allow the person in charge (normally a security person) to consult the available spaces to be able to indicate to the arriving users where to park.

3. The system must allow the person in charge (normally a security person) to enter the space where they will park, the license plate, brand, color and commercial value of the vehicle to be parked. In some cases, the person in charge may omit the commercial value of the vehicle due to ignorance, for these cases a default value of 30 million will be saved.

4. The system must allow the status of all the spaces in the building to be consulted.

5. The system must allow printing all the information of the parked vehicles.

6. The system must allow consulting the information of a parked vehicle.

7. The system must be able to change the sensor status (available to occupied) when a car occupies a parking space.

Overproduction of uric acid in the body can be an indication of cell breakdown. This may be an advance indication of illness such as gout, leukemia, or lymphoma.† Over a period of months, an adult male patient has taken six blood tests for uric acid. The mean concentration was x = 5.35 mg/dl. The distribution of uric acid in healthy adult males can be assumed to be normal, with σ = 1.93 mg/dl.

(a) Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. What is the margin of error? (Round your answers to two decimal places.

(d) Find the sample size necessary for a 95% confidence level with maximal margin of error E = 1.02 for the mean concentration of uric acid in this patient's blood. (Round your answer up to the nearest whole number blood tests.

Let x be a random variable that represents the weights in kilograms (kg) of healthy adult female deer (does) in December in a national park. Then x has a distribution that is approximately normal with mean μ = 52.0 kg and standard deviation σ = 8.5 kg. Suppose a doe that weighs less than 43 kg is considered undernourished.

(a) What is the probability that a single doe captured (weighed and released) at random in December is undernourished? (Round your answer to four decimal places.)


(b) If the park has about 2450 does, what number do you expect to be undernourished in December? (Round your answer to the nearest whole number.)
does

(c) To estimate the health of the December doe population, park rangers use the rule that the average weight of n = 45 does should be more than 49 kg. If the average weight is less than 49 kg, it is thought that the entire population of does might be undernourished. What is the probability that the average weight x for a random sample of 45 does is less than 49 kg (assuming a healthy population)? (Round your answer to four decimal places.)


(d) Compute the probability that x< 53.4 kg for 45 does (assume a healthy population). (Round your answer to four decimal places.)

1. Suppose individuals A and B have the same money income and tastes and face the same set of prices of all goods except access to a free National Park. (They will be 2 points on the same demand curve; find the equation to the line and the X and Y intercepts.) Individual A lives farther away than individual B and has higher travel costs. Their annual use is summarized as:

How much consumer surplus does each individual receive per year from the park usage? What are the total social benefits (as measured by the sum of the consumer surplus measures) from the park?

2. A worker, who is typical in all respects, works for a wage of $50,000 per year in a perfectly safe occupation. Another typical worker does a job requiring exactly the same skills as the first worker, but in a risky occupation with a known death probability of 1 in 10,000 per year, and receives a wage of $60,000 per year. What value of a human life for workers with these characteristics should a cost-benefit analyst use?  

3. Manufacturers in an urban environment are currently producing 25,000 widgets per year. Their gross revenue is $300 per widget with variable costs of $125 per widget. Air quality in the city has fallen to a level of 20 points measured on a 0-100 scale. Three proposals could improve the air quality. Option I involves annual direct costs of $100,000 which raises the air quality index to 32; option 2 costs $130,000 per year and raises the index to 42; option 3 costs $150,000 per year and raises the index to 50. Also producers are required to reduce their widget output by: 5% under option 1, 10% under option 2, and 15% under option 3.

a. Which option has the lowest total opportunity cost?

b. Which option has the lowest cost per unit of air quality improvement?

c. Why might neither of these be the most efficient?