The data resulting from a random sample of 5 observations are shown below. Y is the dependent variable, and X1 and X2 are the independent variables.

Use Excel's Regression tool to answer the following questions. To copy the data set, highlight the table, press Ctrl-c, click on the Excel cell to which you want to copy, then press Ctrl-v.

Fill in Multiple Blanks

For all numerical answers, show one (1) digit to the right of the decimal point, for example, 1.0, 1.2. Apply the appropriate rounding rule if necessary. Hint: You can use the “Format Cell” option in the Regression output so that it shows two digits after the decimal point. Excel will automatically round the values up or down, if necessary.

1. The estimated regression line is (enter the estimated coefficients in the appropriate space):

yhat =____________ +____________ X1 +____________ X2

2. At 95% confidence, X1  (enter is, is not) significantly related to Y.

3. At 95% confidence, X2  (enter is, is not) significantly related to Y.

4. Predict Y when X1 = 94.8 and X2 = 11.2. Yhat = .

5. While testing for overall significance at 95% confidence, the null hypothesis (shown below)  (enter should, should not) be rejected.

Ho: beta1 = beta2 = 0

Ha: At least one of the beta's does not equal 0

6. True or false? About 77% of the variability in Y is explained by X1 and X2, and about 23% of the variability in Y is explained by the other factors not included in the regression.  (Enter true, false).

1) What is the value of Q when each reactant and product is in its standard state? (See Section 10.10 in the textbook for the definition of standard states.)

What is the value of  when each reactant and product is in its standard state? (See Section 10.10 in the textbook for the definition of standard states.)

22.414 L
298 K
1 atm
1

2) For the reactionA(g)⇌2B(g), a reaction vessel initially contains only A at a pressure of PA=1.28 atm . At equilibrium, PA =0.17 atm Calculate the value of Kp. (Assume no changes in volume or temperature.)

3) Consider the reaction: 2NO(g)+Br2(g)⇌2NOBr(g) Kp=28.4 at 298 K
In a reaction mixture at equilibrium, the partial pressure of NO is 102 torr and that of Br2 is 160torr .What is the partial pressure of NOBr in this mixture?

4) The system described by the reaction CO(g)+Cl2(g)⇌COCl2(g)
is at equilibrium at a given temperature when PCO= 0.28 atm , PCl2= 0.10 atm , and PCOCl2= 0.61 atm . An additional pressure of Cl2(g)= 0.40 atm is addedFind the pressure of CO when the system returns to equilibrium.

5)At 650 K, the reaction MgCO3(s)⇌MgO(s)+CO2(g) has Kp=0.026. A 12.5 L container at 650 K has 1.0 g of MgO(s) and CO2 at P = 0.0260 atm. The container is then compressed to a volume of 0.500 L Find the mass of MgCO3 that is formed.

6) Consider the following reaction:
SO2Cl2(g)⇌SO2(g)+Cl2(g)
Kc=2.99×10−7 at 227∘C

If a reaction mixture initially contains 0.168 M SO2Cl2, what is the equilibrium concentration of Cl2 at 227 ∘C?

Assume that you recently graduated and you just landed a job as a financial planner with the Cleveland Clinic. Your first assignment is to invest $100,000. Because the funds are to be invested at the end of one year, you have been instructed to plan for a one-year holding period. Further, your boss has restricted you to the following investment alternatives, shown with their probabilities and associated outcomes.

Barney Smith Investment Advisors recently issued estimates for the state of the economy and the rate of return on each state of the economy. Alta Industries, Inc. is an electronics firm; Repo Men Inc. collects past due debts; and American Foam manufactures mattresses and various other foam products. Barney Smith also maintains an "index fund" which owns a market-weighted fraction of all publicly traded stocks; you can invest in that fund and thus obtain average stock market results. Given the situation as described, answer the following questions.

a. Calculate the expected rate of return on each alternative.

b. Calculate the standard deviation of returns on each alternative.

c. Calculate the coefficient of variation on each alternative.

d. Calculate the beta on each alternative.

A random sample of 19 wolf litters in Ontario, Canada, gave an average of x₁ = 5.6 wolf pups per litter, with estimated sample standard deviation s₁ = 1.1. Another random sample of 6 wolf litters in Finland gave an average of x₂ = 3.8 wolf pups per litter, with sample standard deviation s₂ = 1.0.

(a) Categorize the problem below according to parameter being estimated, proportion p, mean μ, difference of means μ₁ – μ₂, or difference of proportions p₁ – p₂. Then solve the problem.

μ₁ – μ₂

μ

p₁ – p₂

p

(b) Find an 99% confidence interval for μ₁ – μ₂, the difference in population mean litter size between Ontario and Finland. (Use 1 decimal place.)

(c) Examine the confidence interval and explain what it means in the context of this problem. Does the interval consist of numbers that are all positive? all negative? of different signs? At the 99% level of confidence, does it appear that the average litter size of wolf pups in Ontario is greater than the average litter size in Finland?

Because the interval contains only positive numbers, we can say that the average litter size of wolf pups is greater in Ontario.

Because the interval contains both positive and negative numbers, we can not say that the average litter size of wolf pups is greater in Ontario.

   We can not make any conclusions using this confidence interval.

Because the interval contains only negative numbers, we can say that the average litter size of wolf pups is greater in Finland.

Write program in Java

import java.util.Scanner;

public class Lab7Program {
public static void main(String[] args) {
//1. Create a double array that can hold 10 values
  
//2. Invoke the outputArray method, the double array is the actual argument.

//4. Initialize all array elements using random floating point numbers between 1.0 and 5.0, inclusive
  
//5. Invoke the outputArray method to display the contents of the array
  
//6. Set last element of the array with the value 5.5, use length to access last index.
  
//7. Invoke the outputArray method to display the contents of the array
  
//8. Allow user to input elements 2 through 6 through keyboard
  
//9. Invoke the outputArray method to display the contents of the array
  
//10. Compute the sum of all elements in the array
  
//11. Display the sum you found in step #9
  
//12. Find the index of the smallest element in the array.
  
//13. Display the index of the smallest element and the value of the
// smallest element.
  
//15. Invoke bubble sort method, the array is the actual argument.

//16. Invoke the outputArray method, the array is the actual argument.

//18. Invoke linearSearch method, search for value 5.5. Output a statement informing if the
// search value was found or not.

}
  
// 3. Implement outputArray method that will display the contents of the array
// on a single line, elements separated by spaces.
// There should be an empty line in the output after the array elements.
  
// 14. Implement bubble sort method here. The double type array is the formal parameter.
  
// 17. Implement linearSearch method here. The double type array and search value are the formal parameters.
}

This is my lab and I am very confused regarding the calculations! It is supposes to demonstrate Le Chatelier’s principle.

After doing the following I need to calculate the molar absorbance for Co(H20)6 2+. The path length is 1cm and absorbance is .551. I got 5.51 L/mol *cm.

I also need to calculate the CoCl4 2- molar absorbance which I do not understand. The absorbance is .570 and the path length is 1cm. I do not know how to find the concentration.

1.Obtain a 10 mL graduated cylinder and three, 1 cm diameter spectrophotometer cells (cuvettes).

2. Fill one cuvette about ¾ full with deionized water. This cuvette will be used as the blank, to zero the instrument.

3. Fill a second cuvette about ¾ full with 0.10 M Co(NO3)2 .6H2O.

4. Prepare 100 mL of a 0.010 M Co(NO3)2 . 6H2O solution. Add exactly 10.0 mL of 0.10 M Co(NO3)2*6H2O to a 100 mL volumetric flask and dilute with deionized water to the mark.

5. Use the 10.0 ml graduated cylinder to prepare a solution of [CoCl4]2-. To the 10 mL graduated cylinder add 1.0 mL of 0.010 M Co(NO3)2 * 6H2O (prepared in step 4). Carefully pipette 4.0 mL of 12 M HCl into the graduated cylinder so that the total volume is 5 mL. Mix well.

6. Fill the third cuvette about ¾ full with the solution from step 5.

7. Obtain an equilibrium mixture from your instructor. This will be cuvette 4.

A reputable engine company has been making carbureted spark-ignition engines that operate with an equivalence ratio = 1.0 and a compression ratio of 9:1 for years. In order to control emissions, the engines operate with 20% exhaust gas recirculation (EGR) and a three-way catalytic converter. Since the company’s market share is steadily dropping, they consider hiring a MEC graduate to rescue them. The ambitious young engineer proposes a port fuel-injected (PFI) design, which operates lean at 0.7 with a high compression ratio (15:1) and vigorous inlet swirl. The new engine has the spark-plug mounted at the center of the combustion chamber, while the production engine has the spark-plug at the side.

(a) Will the flame development period of the new chamber be shorter, longer, or about the same as the current design?

(b) Will the rate of the combustion of the new chamber be faster, slower, or about the same as the current design?

(c) Sketch the mass fraction burned vs. crank-angle curves for these two combustion chambers when spark-timing is set for maximum brake torque. Clearly label the sparktiming, ignition delay, and overall burn duration for each case.

(d) The engineer claims that the proposed lean-burn engine will have the same octane requirement as the production SI engine. Could this claim be true?

(e) Will the proposed lean-burn engine clearly develop greater power at full load than the current SI engine?

(f) Would there be any additional advantages or disadvantages if the proposed engine were direct-injected, stratified charge, instead of homogeneous, operating at the same overall equivalence ratio?

12. Danny Electronics Corporation uses a standard cost system for the production of its water ski radios. The direct labor standard for each radio is 0.9 hours. The standard direct labor cost per hour is $7.20. During the month of August, Danny's water ski radio production used 6,600 direct labor-hours at a total direct labor cost of $48,708. What is Danny's labor rate variance for August?

    1. $1,188Favorable

    2. $1,188 Unfavorable

    3. $2,160 Favorable

    4. $2,160Unfavorable

13. Emily Corporation's cost of goods manufactured for the just completed month was $146,000. The beginning finished goods inventory was $35,000 and the ending finished goods inventory was $37,000. How much was the cost of goods sold?

    A. $181,000B. $146,000C. $144,000D. $139,000

14. If manufacturing overhead is under applied, then:

    1. actual manufacturing overhead cost is less than estimated manufacturing overhead cost.

    2. the amount of manufacturing overhead cost applied to Work in Process is less than the actual

       manufacturing overhead cost incurred.

    3. the predetermined overhead rate is too high.

    4. the Manufacturing Overhead account will have a credit balance at the end of the year.

15. Selling used equipment, for cash, at book value will:

    1. Increaseworkingcapital

    2. Decrease working capital

    3. Decrease debt-to-equity ratio

    4. Increasenetincome

16. A company’s current ratio is greater than 1.0. Purchasing raw materials for cash will:

    1. Notchangethecurrentratio

    2. Increase the current ratio

    3. Decrease the current ratio

    4. Increasenetworkingcapital

17. A company’s DSO (Days Sales Outstanding) would expect to improve as a result of

    1. The terms of sale changed from net 30 to net 45 days from invoice date

    2. A drop is sales price

    3. An increase in cash sales in proportion to credit sales

D. A change in the credit policy to shorten the period for cash discounts

Smoky Mountain Corporation makes two types of hiking boots—the Xtreme and the Pathfinder. Data concerning these two product lines appear below: Xtreme Pathfinder Selling price per unit $ 121.00 $ 85.00 Direct materials per unit $ 64.90 $ 51.00 Direct labor per unit $ 11.20 $ 8.00 Direct labor-hours per unit 1.4 DLHs 1.0 DLHs Estimated annual production and sales 27,000 units 70,000 units The company has a traditional costing system in which manufacturing overhead is applied to units based on direct labor-hours. Data concerning manufacturing overhead and direct labor-hours for the upcoming year appear below: Estimated total manufacturing overhead $ 2,156,000 Estimated total direct labor-hours 107,800 DLHs Required: 1. Compute the product margins for the Xtreme and the Pathfinder products under the company’s traditional costing system. 2. The company is considering replacing its traditional costing system with an activity-based costing system that would assign its manufacturing overhead to the following four activity cost pools (the Other cost pool includes organization-sustaining costs and idle capacity costs): Estimated Overhead Cost Expected Activity Activities and Activity Measures Xtreme Pathfinder Total Supporting direct labor (direct labor-hours) $ 700,700 37,800 70,000 107,800 Batch setups (setups) 737,000 380 290 670 Product sustaining (number of products) 640,000 1 1 2 Other 78,300 NA NA NA Total manufacturing overhead cost $ 2,156,000 Compute the product margins for the Xtreme and the Pathfinder products under the activity-based costing system.

Smoky Mountain Corporation makes two types of hiking boots—the Xtreme and the Pathfinder. Data concerning these two product lines appear below: Xtreme Pathfinder Selling price per unit $ 121.00 $ 88.00 Direct materials per unit $ 64.70 $ 54.00 Direct labor per unit $ 10.80 $ 9.00 Direct labor-hours per unit 1.2 DLHs 1.0 DLHs Estimated annual production and sales 25,000 units 71,000 units The company has a traditional costing system in which manufacturing overhead is applied to units based on direct labor-hours. Data concerning manufacturing overhead and direct labor-hours for the upcoming year appear below: Estimated total manufacturing overhead $ 2,020,000 Estimated total direct labor-hours 101,000 DLHs Required: 1. Compute the product margins for the Xtreme and the Pathfinder products under the company’s traditional costing system. 2. The company is considering replacing its traditional costing system with an activity-based costing system that would assign its manufacturing overhead to the following four activity cost pools (the Other cost pool includes organization-sustaining costs and idle capacity costs): Estimated Overhead Cost Expected Activity Activities and Activity Measures Xtreme Pathfinder Total Supporting direct labor (direct labor-hours) $ 606,000 30,000 71,000 101,000 Batch setups (setups) 693,000 360 270 630 Product sustaining (number of products) 700,000 1 1 2 Other 21,000 NA NA NA Total manufacturing overhead cost $ 2,020,000 Compute the product margins for the Xtreme and the Pathfinder products under the activity-based costing system.