The following table compares the completion percentage and interception percentage of 5 NFL quarterbacks.

Step 1 of 5: Calculate the sum of squared errors (SSE). Use the values b0=67.2500 and b1=−1.0750 for the calculations. Round your answer to three decimal places.

Step 2 of 5: Calculate the estimated variance of errors, s2e. Round your answer to three decimal places

Step 3 of 5: Calculate the estimated variance of slope, s2b1. Round your answer to three decimal places.

Step 4 of 5: Construct the 98% confidence interval for the slope. Round your answers to three decimal places.(Lower Endpoint, Upper Endpoint)

Step 5 of 5: Construct the 90% confidence interval for the slope. Round your answers to three decimal places.(Lower Endpoint, Upper Endpoint)

The following table compares the completion percentage and interception percentage of 5 NFL quarterbacks.

Completion Percentage   Interception Percentage
55   4.3
59   2.2
61   1.9
62   1.8
66   1.7

Step 1 of 5: Calculate the sum of squared errors (SSE). Use the values b0=16.4513and b1=−0.2322 for the calculations. Round your answer to three decimal places.

Step 2 of 5: Calculate the estimated variance of errors, se2. Round your answer to three decimal places.

Step 3 of 5: Calculate the estimated variance of slope, s^2b1. Round your answer to three decimal places.

Step 4 of 5: Construct the 98% confidence interval for the slope. Round your answers to three decimal places.

Step 5 of 5: Construct the 99% confidence interval for the slope. Round your answers to three decimal places.

The following table compares the completion percentage and interception percentage of 55 NFL quarterbacks.

Step 4 of 5 :  

Construct the 98% confidence interval for the slope. Round your answers to three decimal places.

Step 5 of 5 :  

Construct the 95% confidence interval for the slope. Round your answers to three decimal places.

The following table compares the completion percentage and interception percentage of 5 NFL quarterbacks. Completion Percentage 57 59 61 65 65 Interception Percentage 4.8 4.7 4.5 3.1 1.1 Table

Step 4 of 5 : Construct the 98% confidence interval for the slope. Round your answers to three decimal places.

Compare the Greek arts to the Roman arts. When the Romans came to power, their art was heavily influenced by the Greeks, but with some changes. In what ways did the Romans change the Classics of the Greek artistic legacy? Include examples of how the Romans transformed Greek philosophy, architecture, theater, and sculpture and reinterpreted it into their own unique Roman style.   

Sidneyland is a popular theme park in Southern California that is now planning for its eventual re-opening after closing during Covid-19. In years past, New Years Eve was the single largest day of revenue earned by the park due to the high sales volume of NYE themed merchandise. However, this year it is uncertain if Sidneyland will even be opened on New Years Eve, and the time to order the 2021 apparel is approaching. The first purchase deadline is at the end of October, at which point Sidneyland can either buy the goods in full for​$100,000 or defer the decision until the end of November. At the end of November, the rush order price rises to​$150,000​. There is ​no cost nor profit if no purchase is made​. Sidneyland’s public health and data science consultants estimate that there is a​40% chance that the local Covid-19 situation improves from the end of October to the end of November, a​60% ​chance that it stays in the current most restrictive tier. If it improves, the experts predict a​90% ​chance the park is open on NYE, compared to a ​30%​ chance if it stays in the current most restrictive tier. Assuming that all goods sell for ​$200,000 if the park is open on NYE but are otherwise unsellable, answer the following questions about Sidneyland’s purchasing strategy if their goal is to maximize expected merchandise profit.

A) What are all of the different times to make a decision, and what decisions can be made at those times? ​

B) Supposing that Sidneyland defers and waits to make a decision at the end of November and supposing further that the public health scenario improves from October to November, what strategy should they take and what is the resulting expected earnings (or losses)?

C) Using the projections from the end of October, what are the expected merchandise earnings (or losses) if Sidneyland elects to defer the decision from October to November? ​

D) Using the projections from the end of October, what are the expected merchandise earnings (or losses) if Sidneyland buys the merchandise at the end of October?

E) What decision should Sidneyland make at the end of October? Explain.

Economic Forecasting. Assume you are a cartoon artist at a local theme park. At your current price, $8.50, you sell 500 sketches a month. As a result of a $1.00 price increase sales reduced by 100 sketches.

1. What is the demand elasticity of your sketches? Interpret your results.
2. Assume your marginal cost is $4. What is your desired margin and your current margin? Interpret these numbers.
3. Was your price strategy profitable? Why or why not?

Greenwood Company manufactures two products— 14,000 units of Product Y and 6,000 units of Product Z. The company uses a plantwide overhead rate based on direct labor-hours. It is considering implementing an activity-based costing (ABC) system that allocates all of its manufacturing overhead to four cost pools. The following additional information is available for the company as a whole and for Products Y and Z:

1.What is the company's plantwide overhead rate?

2.Using the plantwide overhead rate, how much manufacturing overhead cost is allocated to Product Y? How much is allocated to Product Z?

3What is the activity rate for the Machining activity cost pool?

4What is the activity rate for the Machine Setups activity cost pool?

5What is the activity rate for the Product Design activity cost pool?

6What is the activity rate for the General Factory activity cost pool?

7Which of the four activities is a batch-level activity? Why?

8Which of the four activities is a product-level activity? Why?

9Using the ABC system, how much total manufacturing overhead cost would be assigned to Product Y?

10Using the ABC system, how much total manufacturing overhead cost would be assigned to Product Z?

11Using the plantwide overhead rate, what percentage of the total overhead cost is allocated to Product Y? What percentage is allocated to Product Z?

12Using the ABC system, what percentage of the Machining costs is assigned to Product Y? What percentage is assigned to Product Z? Are these percentages similar to those obtained in question 11? Why?

13Using the ABC system, what percentage of Machine Setups cost is assigned to Product Y? What percentage is assigned to Product Z? Are these percentages similar to those obtained in question 11? Why?

14Using the ABC system, what percentage of the Product Design cost is assigned to Product Y? What percentage is assigned to Product Z? Are these percentages similar to those obtained in question 11? Why?

15Using the ABC system, what percentage of the General Factory cost is assigned to Product Y? What percentage is assigned to Product Z? Are these percentages similar to those obtained in question 11? Why?

A) Find the equation of the tangent line to the curve y = 5e^-8x at the point (0, 5).

B) Solve for t.

e^0.09t = 9

C) Rancher Johann wants to build a three-sided rectangular fence near a river, using 280 yards of fencing. Assume that the river runs straight and that Johann need not fence in the side next to the river.

Johann wants to build a fence so that the enclosed area is maximized.

• What should be the length of each side running perpendicular to the river?
  yards
  
• What should be the length of the side running parallel to the river?
  yards
  
• What is the largest total area that can be enclosed?
  square yards

D) Find the absolute maximum and minimum values on the closed interval [-3,3] for the function below. If a maximum or minimum value does not exist, enter NONE.

f(x) = (4x)/(x² + 1)

E) When a baseball park owner charges $5.00 for admission, there is an average attendance of 100 people. For every $0.25 increase in the admission price, there is a loss of 2 customers from the average number.

1. What admission price should be charged in order to maximize revenue
   
2. What is the maximum revenue?

F) Find the derivative.

f(x) = x⁶ · e^2x

CH12

1. With double-digit annual percentage increases in the cost of health insurance, more and more workers are likely to lack health insurance coverage (USA Today, January 23, 2004). The following sample data provide a comparison of workers with and without health insurance coverage for small, medium, and large companies. For the purposes of this study, small companies are companies that have fewer than 100 employees. Medium companies have 100 to 999 employees, and large companies have 1000 or more employees. Sample data are reported for 50 employees of small companies, 75 employees of medium companies, and 100 employees of large companies.

1. Conduct a test of independence to determine whether employee health insurance coverage is independent of the size of the company. Use  = .05. Use Table 12.4.
   
   Compute the value of the  ² test statistic (to 2 decimals).
   
   
   The p value is ?
   
   
   
2. The USA Today article indicated employees of small companies are more likely to lack health insurance coverage. Calculate the percentages of employees without health insurance based on company size (to the nearest whole number).
   

   Small	%
   Medium	%
   Large	%

   SMALL ? , MEDIUM? LARGE ?

2.

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 30%, CBS 27%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 93 homes, CBS 63 homes, NBC 88 homes, and independents 56 homes. Test with  = .05 to determine whether the viewing audience proportions changed. Use Table 12.4.

Round your answers to two decimal places.

χ ² = ??