Researchers plan to study the weight gain of cows during a 3-month period. They wish to test at alpha = 0.01 if the mean weight gain exceeds 15 kg. Further, it is important for the researchers to detect if the mean weight gain is as large as 27 kg. An earlier study indicated that the standard deviation of the weight gains was around 14 kg. Since weight gains are normally distributed a t-test is to be used.
(a) If the researchers used a sample size of 22 what would be the power of the test in detecting if the mean weight gain is as large a 27 kg? Use R, showing the command you used and the result.
(b) Use Table 21 to determine the sample size required in order to have a power of 0.99 to detect if the mean weight gain is as large a 27 kg.
In: Statistics and Probability
mong the thirty largest U.S. cities, the mean one-way commute
time to work is 25.8 minutes. The longest one-way travel time is in
New York City, where the mean time is 38.8 minutes. Assume the
distribution of travel times in New York City follows the normal
probability distribution and the standard deviation is 7.7 minutes.
Use Appendix B.3
. What percent of the New York City commutes are for less than 27
minutes? (Round your intermediate calculations and final answer to
2 decimal places.)
What percent are between 27 and 35 minutes? (Round your
intermediate calculations and final answer to 2 decimal
places.)
What percent are between 27 and 43 minutes? (Round your
intermediate calculations and final answer to 2 decimal
places.)
In: Statistics and Probability
Parker Products manufactures a variety of household products.
The company is considering introducing a new detergent. The
company's CFO has collected the following information about the
proposed product. (Note: You may or may not need to use
all of this information, use only the information that is
relevant.)
|
· |
The project has an anticipated economic life of 3 years. |
|
· |
The company will have to purchase a new machine to produce the detergent. The machine has an up-front cost (t = 0) of $2.1 million. The machine will be depreciated on a straight-line basis over 3 years (that is, the company's depreciation expense will be $700,000 in each of the three years (t = 1, 2, and 3). The company anticipates that the machine will last for three years, and that after four years, its salvage value will equal zero. |
|
· |
If the company goes ahead with the proposed product, it will have an effect on the company's net operating working capital. At the outset, t = 0, inventory will increase by $600,000 and accounts payable will increase by $220,000. At t = 3, the net operating working capital will be recovered after the project is completed. |
|
· |
The detergent is expected to generate sales revenue of $3 million the first year (t = 1), $4 million the second year (t = 2), and $5 million the third year (t = 3). Each year the operating costs (not including depreciation) are expected to equal 50 percent of sales revenue. |
|
· |
The company's interest expense each year will be $200,000. |
|
· |
The new detergent is expected to reduce the after-tax cash flows of the company's existing products by $400,000 a year (t = 1, 2, and 3). |
|
· |
The company's overall WACC is 12 percent. However, the proposed project is riskier than the average project for Parker; the project's WACC is estimated to be 13 percent. |
|
· |
The company's tax rate is 40 percent. |
Estimate the project net cash flows. Make sure to put the cash
flows in order: CF0 in box 1, CF1 in Box 2, CF2 in Box 3, etc.
Round it to a whole dollar, and do not
include the $ sign.
In box 5 (last one), compute the project's NPV. Round it to
a whole dollar, and do not include the $
sign.
In: Finance
Variable Total
Quantity Cost Cost
0 cups Rs.0 Rs.29
1 9 39
2 24 54
3 44 74
4 69 99
5 99 129
6 134 164
For each quantity, calculate average variable cost, average total cost, and marginal cost.
Plot all three curves on the same graph.
Discuss the relationship between marginal-cost curve and average-total-cost curve.
In: Economics
Given the following grouped frequency distribution
| Data | Frequency |
| 50 - 54 | 12 |
| 55 - 59 | 23 |
| 60 - 64 | 11 |
| 65 - 69 | 8 |
| 70 - 74 | 5 |
| 75 - 79 | 7 |
| 80 - 84 | 3 |
| 85 - 89 | 1 |
| 90 - 94 | 1 |
Find the mean (give you answer to one decimal) =
Find the standard deviation (give your answer to two decimals) =
What is the shape of this distribution? Your answer will be hand graded.
In: Statistics and Probability
Project: Assess the impact of teaching style (F2F, Web, Mixed) on mean introductory sociology grades. Please determine if any of the groups differentiate themselves from the others using the .05 probability level.
F2F Web Mixed
Person 1 94 80 85
Person 2 78 74 83
Person 3 87 75 79
Person 4 90 76 80
Person 5 82 83 80
Please determine if the groups differ significantly and what that means.
In: Statistics and Probability
M Ratajczyk opened the Big D Emporium on March 1, 2017. During March, the following transactions were completed:
March 1 Issued 10,000 shares of common stock for $25,000 cash.
1 Purchased used servers for $10,000, paying $6,000 cash and the balance on account.
3 Purchased office supplies for $1,500 on account.
5 Paid $2,400 cash on 1-year insurance policy effective March 1.
14 Billed customers $4,200 for data analysis services.
18 Paid $1,500 cash on amount owed on servers and $500 on amount owed on office supplies.
20 Paid $2,750 cash for employee salaries.
21 Collected $1,400 cash from customers billed on March 14.
28 Billed customers $6,200 for data analysis services.
31 Paid $350 for server maintenance which did not extend the life or function of the servers.
31 Declared and paid $900 cash dividend. ACCT 3201
Required:
Post to the ledger accounts.
Prepare a trial balance at March 31.
Journalize the following adjustments:
Earned but unbilled and uncollected revenue at March 31 was $800.
Depreciation on equipment for the month was $650.
One-twelfth of the insurance policy expired.
An inventory count shows $280 of office supplies on hand at March 31.
Incurred employee salaries but unpaid were $1,060.
Post adjusting entries to the general ledger.
Prepare an adjusted trial balance.
Prepare the income statement and a retained earnings statement for March and a classified balance sheet at March 31.
Journalize and post closing entries and complete the closing process.
Prepare a post-closing trial balance at March 31.
In: Accounting
Lars Linken opened Riverbed Cleaners on March 1, 2017. During March, the following transactions were completed.
| Mar. 1 | Issued 10,200 shares of common stock for $15,300 cash. | ||
|---|---|---|---|
| 1 | Borrowed $6,000 cash by signing a 6-month, 6%, $6,000 note payable. Interest will be paid the first day of each subsequent month. | ||
| 1 | Purchased used truck for $8,200 cash. | ||
| 2 | Paid $1,500 cash to cover rent from March 1 through May 31. | ||
| 3 | Paid $2,400 cash on a 6-month insurance policy effective March 1. | ||
| 6 | Purchased cleaning supplies for $2,040 on account. | ||
| 14 | Billed customers $3,770 for cleaning services performed. | ||
| 18 | Paid $510 on amount owed on cleaning supplies. | ||
| 20 | Paid $1,790 cash for employee salaries. | ||
| 21 | Collected $1,630 cash from customers billed on March 14. | ||
| 28 | Billed customers $4,280 for cleaning services performed. | ||
| 31 | Paid $360 for gas and oil used in truck during month (use Maintenance and Repairs Expense). | ||
| 31 | Declared and paid a $920 cash dividend. |
The chart of accounts for Riverbed Cleaners contains the following
accounts: Cash, Accounts Receivable, Supplies, Prepaid Insurance,
Prepaid Rent, Equipment, Accumulated Depreciation—Equipment,
Accounts Payable, Salaries and Wages Payable, Notes Payable,
Interest Payable, Common Stock, Retained Earnings, Dividends,
Income Summary, Service Revenue, Maintenance and Repairs Expense,
Supplies Expense, Depreciation Expense, Insurance Expense, Salaries
and Wages Expense, Rent Expense, and Interest Expense.
Prepare a trial balance at March 31.
In: Accounting
Data series:
Need to answer what type of data and use which type of graph
1. The number of years since a person immigrated to Canada. These are individual level data collected as part of the 2006 census and are given for 11,000 people (i.e. there are 11,000 observations).
2. CPI in Canada, 1980 to 2015
3. Employment by major industry sectors across Canada in 2010.
In: Economics
On January 1, 2020 the Walker Manufacturing Company purchased 10% bonds having a maturity value of $100,000 due in 5 years. The bonds pay interest every January 1st. Walker paid a premium for the bonds in the amount of $7,985.10. As a result of paying the $7,985.10 premium, the bond investment provides Walker with an 8% yield. Required:
Prepare journal entries for the following dates:
1. January 1, 2020 when the bonds were purchased.
2. December 31, 2020 to record interest revenue and amortization.
3. January 1, 2021 to record the interest payment being received.
5. December 31, 2021 to record interest revenue and amortization.
5. January 1, 2022 to record the interest payment being received.
In: Accounting