Related samples t-test:

Test whether semester GPA significantly changes during a semester abroad program. Use a related (dependent) samples t-test and alpha = .05 with a nondirectional test. The data are presented below.

Answer the following questions. You can use SPSS, but if you do this problem “by hand” be sure to show your work.

1.       What are the null & alternative hypotheses?
2.       What are the degrees of freedom?
3.       What is the critical value of t?
4.       What is the observed value of t?
5.       What is your decision about the null hypothesis/why?
6.        If appropriate, calculate Cohen’s d and report its value.
7.       Write the t statistic using appropriate APA style.
8.       How would you interpret your findings?    

          Before program                             During program

                   2.94                                        3.03

                   2.22                                        1.79

                   3.12                                        3.13

                   1.99                                        2.97

                   3.43                                        3.75

                   3.08                                        3.11

                   2.81                                        2.98

                   3.72                                        3.92

                   2.18                                         2.03

                   3.60                                        3.52

Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. Observations of the Reaction A. NaHCO3 + HCl B. HCl + BTB C. NH3 + BTB D. HCl + blue dye E. Blue dye + NaOCl with the 1 drop of HCl F. NaOCl + KI with 1 drop of starch G. KI + Pb(NO3)2 H. NaOH + phenolphthalein I. HCl + phenolphthalein J. NaOH + AgNO3 K. AgNO3 + NH3 after exposure to bright light L. NH3 and CuSO4 Part F: Testing of Various Foods with the NaOCl + KI solution Foods Presence or Absence of Starch Part 2: Household Chemicals with Bromthymol Blue Use the empty pipet in the Auxiliary Supplies Bag to test several (at least 3) household items including household cleaning products with bromothymol blue. Rinse the pipet well before using it on the next household chemical. When finished with this experiment rinse the pipet well and return it to the Auxiliary Bag for use in future experiments. Name the items tested and record their results. Household Chemicals Well No. Observations of the Reaction Conclusion: Questions and Problems: A. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate, NaHCO3). How would you test this material for the presence of sodium bicarbonate? B. Looking at the household chemicals you tested with bromthymol blue, what can you deduce from the test results for each of the household chemicals? C. You found a sample of a solution that you think might be vinegar which is acidic. You are verifying that it is indeed vinegar and you add a few drops of phenolphthalein. The sample turns pink. What does that tell you about this sample? D. You suspect dissolved silver ions in a solution. How would you test this solution to confirm the p

Problem 3-24B Assessing simultaneous changes in CVP relationships using the equation method

Milton Company sells tennis racquets; variable costs for each are $45, and each is sold for $135. Milton incurs $540,000 of fixed operating expenses annually.

Required

Determine the sales volume in units and dollars required to attain a $270,000 profit. Verify your answer by preparing an income statement using the contribution margin format.

Milton is considering establishing a quality improvement program that will require a $15 increase in the variable cost per unit. To inform its customers of the quality improvements, the company plans to spend an additional $150,000 for advertising. Assuming that the improvement program will increase sales to a level that is 5,000 units above the amount computed in Requirement a, should Milton proceed with plans to improve product quality? Support your answer by preparing a budgeted income statement.

Determine the new break-even point and the margin of safety percentage, assuming Milton adopts the quality improvement program. Round your figures to two decimal points.

Prepare a break-even graph using the cost and price assumptions outlined in Requirement c.

Prepare T account, trial balance, balance sheet and changes in owner's equity statement.

1. Jan-1 The JW-Corp Received $120,000 from Investors in Exchange for 6,000 shares of Common Stock.
2. Jan-2 JW-Corp Borrowed $150,000 from SCHWAB BANK and signed a Note Due in 24 months.
3. Jan-3 JW Corp purchased Office Equipment worth $120,000 (5 year life), with a $40,000 Down payment of Cash and the remainder Due on account to Target-Corp within 9 Months.
4. Jan-4 JW Corp purchased an Office Building for $420,000 (25 year life), by making a Down payment of $60,000 and then signed a Note for the remainder Due in 18 Months to CHASE Bank.
5. Jan-5 JW Corp paid $15,000 with a check for Office Rent for the next 3 months.
6. Jan-10 JW Corp paid $4,000 with a check for Business Insurance for this month.
7. Jan-11 JW Corp provided CPA Services to the Gavilan Corp worth $138,000 and Collected $58,000 Cash and Billed them the remainder on Account.
8. Jan-15 JW-Corp received This Month’s Utility Bill from PGE for $2,000 to be paid Later.
9. Jan-16 JW-Corp received This Month’s Telephone Bill from Skype for $800 to be paid Later.
10. Jan-17 JW-Corp received a $10,000 check from Gavilan Corp on Account.
11. Jan-20 JW-Corp received a BILL for $12,000 for Legal Fees used this month to be Paid Later.
12. Jan-23 JW-Corp paid $11,000 with Checks for this Months Salaries expenses.
13. Jan-24 JW-Corp Received a $13,000 check from Gavilan Corp on Account.
14. Jan-25 JW-Corp received a $27,000 check from Garlic-Corp for Services to be Provided Later.
15. Jan-26 JW-Corp Paid Target $33,000 with a Check towards the Equipment from Transaction #3.
16. Jan-27 JW Corp Wrote a Check to Skype for the Full Amount Due on account for the Telephone Bill from #9.
17. Jan-28 JW Corp Paid $4.20 Cents per Share to the Owners of the Business with Checks.
18. Jan-29 JW-Corp paid $9,000 with a Check on the Note Payable from Transaction #2, $2,800 was for Interest Expense, and the remainder reduced the Note Payable.
19. Jan-31 JW-Corp recorded one Month of RENT Expense from the Prepaid Account.
20. Jan-31 JW-Corp recorded one Month of Depreciation Expense on The Office Equipment Using the Straight Line Depreciation Method.
21. Jan-31 The JW Corp recorded one Month of Depreciation Expense on the Office Building using the Straight Line Depreciation Method.
22. Jan-31 the JW-Corp Recorded the Income Tax Payable for the Month, which is 40% of Net Income.(Type or paste question here

Multiple-Product Analysis, Changes in Sales Mix, Sales to Earn Target Operating Income

Basu Company produces two types of sleds for playing in the snow: basic sled and aerosled. The projected income for the coming year, segmented by product line, follows:

The selling prices are $30 for the basic sled and $60 for the aerosled. (Round break-even packages and break-even units to the nearest whole unit.)

Required:

1. Compute the number of units of each product that must be sold for Basu to break even.

2. Assume that the marketing manager changes the sales mix of the two products so that the ratio is five basic sleds to three aerosleds. Compute the number of units of each product that must be sold for Basu to break even. Round your answers to the nearest whole number.

3. Conceptual Connection: Refer to the original data. Suppose that Basu can increase the sales of aerosleds with increased advertising. The extra advertising would cost an additional $195,000, and some of the potential purchasers of basic sleds would switch to aerosleds. In total, sales of aerosleds would increase by 12,000 units, and sales of basic sleds would decrease by 5,000 units. Would Basu be better off with this strategy? If so, give the amount of increase in income.
___ $