In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. The procedures should be done with 5% P-value or 95% confidence interval.

Open Lab Visits data. Is it reasonable to claim that students with 8 or more visits to open lab sessions have average final grade higher than students with less than 8 visits?

1. What test/procedure did you perform? (5 points)

• a. One-sided t-test
• b. Two-sided t-test
• c. Regression
• d. Confidence Interval

2. Why did you choose this test/procedure? Because… (5 points)

• a. We are checking if number of visits influences final grade.
• b. We are checking if two averages are significantly different.
• c. We are checking if the average of one variable is larger than the average of the other variable.
• d. We are comparing the average final grade with a specific number.

3. What is the P-value/margin of error? (5 points)

• a. 7.19248E-07
• b. 3.59609E-07
• c. 2.55531E-06
• d. 4.161353

4. What is the Statistical interpretation? (5 points)

• a. The P-value is much smaller than 5% thus we are very certain that the slope is not zero.
• b. The P-value is much smaller than 5% thus the test result is conclusive.
• c. The P-value is much smaller than 5% thus we can claim that the number of visits to open lab sessions is related to final grade.
• d. The prediction interval for the true average final grade of students with 8 or more visits to open lab is [78.64454, 85.88879]

5. What is the conclusion? (5 points)

• a. We are confident that more visits to open lab sessions lead to higher final grades.
• b. We are confident that students with 8 or more visits to open lab sessions have average final grade greater than students with less than 8 visits.
• c. We are NOT confident that students with 8 or more visits to open lab sessions have average final grade greater than students with less than 8 visits.
• d. None of these.

5. In lab #2 we used LINEST (Excel function) to determine the slope and uncertainties of the slope. Imagine that you are performing the following measurements: X Y 1 2.2 2 3.1 3 4.5 4 6.3 5 7.5 6 8.3 7 9.7 8 10.5 9 11.2 10 12.5

5.a. Using LINEST, calculate the slope and uncertainty of the slope for given data. Hint: Set your y column as your dependent variable and x column as your independent variable.

5.b. Calculate the mean value x , the standard deviation V y ,and standard deviation of the mean σ y of your ‘measured’ quantity X over N trials (number of runs). Xi (units) 0 .65 0.68 0.62 0.7 0.67 0.63 0.61 0.6 0.66 0.64

PLEASE SHOW WORK

Perkins Company manufacturers a wide variety of products in its Dallas Division. The Dallas plant was created to be an efficient producerof standardized products made in long-production runs although both high and low volume products are now producted there . Annual volums range from severl thousand units for some products to fewer than 10 for others. In recent year, much of the Dallas plants usual business in high volume products ha been lost to competitiors who price aggressivley and who do not product a full product line. To better understand the costs of its products, the Dallas Division is considering changing its product costing system. The existing sstem accululates al over head in a signle cost pool and allocates it based on direct labor horus. Because of the very large number of products, the general manger has decided to focus initially on just two products: Product 321, which is representative of most of Dallas- high volume products and Product 333, a representative low volume product. The following information pertains to the most recent years operations of the Dalls plant; for brevity, details for products other than Product 321 and Product 333 are not shown, but totals for the entire divison are given in the las t column.

................................................................Total for Product 321.....Total Product 333........Total for Dallas

Direct material cost......................................$6,000.....................$150........................25,000

Direct labor cost.......................................30,000.....................600..........................100,000

Total direct cost..................................$36,000........................750............................125,000

Unit-lever overhead....................................................................................................140,000

Batch level overhead....................................................................................................240,000

Product-level overhead................................................................................................200,000

Plant-level overhead....................................................................................................220,000

Total overhead.............................................................................................................800,000

................................................................Total for Product 321.....Total Product 333........Total for Dallas

Units produced........................................2400...............................6............................6,000

Direct Materials pounds..........................36,000............................200...........................100,000

Material requisitions............................40.........................................5............................1,0000

Direct labor hours............................7,200...................................120............................20,000

machine hours........................3,800........................................30...................................10,000

setups...................................40...............................................4....................................1,600

Setup hours............................400..........................................36.....................................8,000

Design changes............................1..........................................4......................................40

Deisgn hours...................................320....................................200...................................2,000

Usual selling price...........................$150.....................................1500

Competitors price.............................$100....................................--------

Question:

Using the usual selling prices and the product costs reported by the ABC system, calculate the gross margin in dollars and as a percent of sales, to the nearest whole percent, on one unit of each product.

Write a function ‘sort1’ that takes in an array of non-zero positive integers as input and returns a second vector
that contains only the odd numbers. It will return zero if all elements are even. Use error-traps to check against
probable errors in user input. In case of an error, it will return NaN. You are allowed to use Matlab built-in function
round(). Check your code with the following arrays:

>> y1 = [18, -5, 89, -7, 4, 10, 12, 34, -2, 45];
>> y2 = [34, 67, 89, 0, 12, 87, 0, 5];
>> y3 = [ 8, 3, 11, 4, 7, 12, 19, 3, 5, 6]

>> z1 = sort1(y1)
z1 =
NaN
>> z2 = sort1(y2)
z2 =
NaN
>> z3 = sort(y3)
z3 =
3 11 7 19 3 5

** You cannot use any built in Matlab functions other than round(). I don't need all the test runs. I'm just stuck halfway through the code and can't finish it.

EZ-Seat, Inc., manufactures two types of reclining chairs, Standard and Ergo. Ergo provides support for the body through a complex set of sensors and requires great care in manufacturing to avoid damage to the material and frame. Standard is a conventional recliner, uses standard materials, and is simpler to manufacture. EZ-Seat’s results for the last fiscal year are shown in the statement below.

EZ-Seat currently uses labor costs to allocate all overhead, but management is considering implementing an activity-based costing system. After interviewing the sales and production staff, management decides to allocate administrative costs on the basis of direct labor costs but to use the following bases to allocate the remaining costs:

Required:

a. Complete the income statement using the preceding activity bases. (Do not round intermediate calculations.)

c. Restate the income statement for EZ-Seat using direct labor costs as the only overhead allocation base. (Do not round intermediate calculations.)

EZ-Seat, Inc., manufactures two types of reclining chairs, Standard and Ergo. Ergo provides support for the body through a complex set of sensors and requires great care in manufacturing to avoid damage to the material and frame. Standard is a conventional recliner, uses standard materials, and is simpler to manufacture. EZ-Seat's results for the last fiscal year are shown in the statement below.

EZ-Seat currently uses labor costs to allocate all overhead, but management is considering implementing an activity-based costing system. After interviewing the sales and production staff, management decides to allocate administrative costs on the basis of direct labor costs but to use the following bases to allocate the remaining costs:

Required:

a. Complete the income statement using the preceding activity bases. (Do not round intermediate calculations.)

c. Restate the income statement for EZ-Seat using direct labor costs as the only overhead allocation base. (Do not round intermediate calculations.)

Flower unlimited is considering purchasing an additional delivery truck that will have seven-year useful life. The new truck will cost $42,000. Cost savings with this truck are expected to be $12,800 for the first two years, $8,900fo the following two years, and $5000 for the last three years of the truck’s useful life. What is the payback period for this project? What is discounted payback period for this project with a discount rate of 10 percent?

please provide formula

Ida Company produces a handcrafted musical instrument called a gamelan that is similar to a xylophone. The gamelans are sold for $910. Selected data for the company’s operations last year follow:

The absorption costing income statement prepared by the company’s accountant for last year appears below:

Required:

1. Under absorption costing, how much fixed manufacturing overhead cost is included in the company's inventory at the end of last year?

2. Prepare an income statement for last year using variable costing.

Which of the following is true?

The higher the cost associated with deposit outflows, the fewer excess reserves banks will want to hold.

One of the least costly ways for a bank to meet withdrawals if it runs short of funds, is to sell loans.

If a bank has sufficient excess reserves, deposit withdrawals will require no other changes in its balance sheet.

An increase in excess reserves reduces liquidity risk and raises a bank's return on its assets.

Write a java program that will take a line of input and go through and print out that line again with all
the word numbers swapped with their corresponding numeric representations (only deal with numbers
from one to nine). Sample runs might look like this:
Please enter a line of input to process:
My four Grandparents had five grandchildren
My 4 grandparents had 5 grandchildren

without array and methods.