Reconsider your student ID in a binary format (as explained in the previous question) as the dataword.
2.1) Find the codeword corresponding to this dataword using the CRC error detection technique, and the divisor polynomial g(x) = x3 +x2 +1. Do Binary division with 0s and 1s.
2.2) Compute now the codeword corresponding to this dataword assuming that the divisor polynomial that is used is f(x) = x5+1. Do Polynomial division.
2.3) Assume that an error corrupted the first two bits of the dataword; show how the CRC technique allows you to detect such an error using the divisor of question 2.2.
My ID digits are: 706
In: Computer Science
|
N =16 G = 120 ΣX² = 1036 |
The following scores are from an independent-measure study comparing two treatment conditions.
|
Treatment |
|
|
I |
II |
|
10 |
7 |
|
8 |
4 |
|
7 |
9 |
|
9 |
3 |
|
13 |
7 |
|
7 |
6 |
|
6 |
10 |
|
12 |
2 |
In: Statistics and Probability
In 2012, XYZ Inc., a medical equipment distributor, sold 10,000 units of its hospital beds at an average price of $500 per unit. The company reported estimated returns and allowances of $200,000. The company purchased 11,000 units of its product from its manufacturer in 2012 at an average cost of $350 per unit. XYZ began 2012 with 1,000 units of its product in inventory (carried at an average cost of $300 per unit). Operating expenses (excluding depreciation) in 2012 were $400,000, and the depreciation expense was $100,000. XYZ had $2,000,000 in debt outstanding throughout all of 2012, which carried an average interest rate of 10%. The company’s tax rate is 40%. Its fiscal year runs from January 1 through December 31. Given this information, prepare the following documents: a. XYZ’s 2012 income statement b. XYZ’s 2012 ending inventory balance (both in unit and in dollar terms)
In: Accounting
When people go on a diet they should lost on average 8 pounds in the first month of their diet. We let 68 try the “statistician’s diet” (every time you get hungry you decide to do some statistics instead) and find the average weight loss for this group of 68 people was 12 pounds with a standard deviation of 10 pounds for the first month they were on the diet.
a) At the .01 level did the diet increase the amount of weight lost? (p = 0)
b) Interpret the p-value obtained
c) Interpret the 99% confidence interval (computer says “over 14.2”)
d) Based on the results of this test would you go on this statistician’s diet? Explain
e) What is the only type of error that could have occurred
(16) 2. The average time it takes to take a stats test is 1.13 hours. I wish to test to see if the last 8 exams had a time that was different from normal. The average time to do the 8 exams was 1.2 hours with a standard deviation of .4 hours.
a) At the .05 level did the last exams take times that were of different length (p = .64)
b) Interpret the p-value
c) Find and interpret the 95% confidence interval (computer gives” .866- 1.534”)
d) If I take another of 8 exams would an average time of 1.3 hours be something I would expect to get? Explain
In: Statistics and Probability
To test Upper H 0: muequals100 versus Upper H 1: munot equals100, a simple random sample size of nequals16 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). LOADING... Click here to view the t-Distribution Area in Right Tail. (a) If x overbarequals105.1 and sequals8.8, compute the test statistic. tequals nothing (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the alphaequals0.01 level of significance, determine the critical values. The critical values are nothing. (Use a comma to separate answers as needed. Round to three decimal places as needed.) (c) Draw a t-distribution that depicts the critical region(s). Which of the following graphs shows the critical region(s) in the t-distribution? A. A symmetric bell-shaped curve is plotted over a horizontal axis. Two vertical lines, equidistant from the curve's peak at the center, extend from the axis to the curve on the far left and right sides of the graph. The areas under the curve to the left of the left vertical line and to the right of the right vertical line are shaded. B. A symmetric bell-shaped curve is plotted over a horizontal axis. On the far left side of the graph, a vertical line runs from the axis to the curve. The area under the curve to the left of the vertical line is shaded. C. A symmetric bell-shaped curve is plotted over a horizontal axis. On the far right side of the graph, a vertical line runs from the axis to the curve. The area under the curve to the right of the vertical line is shaded. (d) Will the researcher reject the null hypothesis? A. The researcher will reject the null hypothesis since the test statistic is between the critical values. B. There is not sufficient evidence for the researcher to reject the null hypothesis since the test statistic is not between the critical values. C. The researcher will reject the null hypothesis since the test statistic isnbsp not nbspbetween the critical values. D. There is not sufficient evidence for the researcher to reject the null hypothesis since the test statistic isnbspbetween the critical values.
In: Statistics and Probability
DP, Inc. produces parts for industrial grinders. The typical
product goes through two processes, machining and finishing, before
being packaged and shipped to the customer. DP holds no finished
goods inventory. All production is triggered by a customer order.
The company uses a traditional cost system and applies overhead to
jobs based on machine hours.
The cost accounting manager at DP has been considering updating its
cost system given the growth in overhead costs. He has collected
data on the major categories of overhead. The estimated annual
costs follow.
| Overhead Category | Annual Cost | ||
| Material handling | $ | 14,250,000 | |
| Machining | 28,500,000 | ||
| Finishing | 9,500,000 | ||
| Shipping | 7,125,000 | ||
| Setups | 16,625,000 | ||
| Total | $ | 76,000,000 | |
As part of the effort to determine whether it would be worthwhile
to update the cost system, the cost accounting manager has
collected data on three representative jobs completed in April.
Data on those jobs follow.
| Job 0404 | Job 0407 | Job 0411 | |||||||
| Direct material | $ | 41,700 | $ | 71,000 | $ | 131,500 | |||
| Machine hours | 1,750 | 2,150 | 4,000 | ||||||
| Units | 1,150 | 1,350 | 2,150 | ||||||
| Production runs | 1 | 3 | 1 | ||||||
| Orders | 1 | 2 | 1 | ||||||
The cost accounting manager has a tentative design for an ABC
system to replace the current cost system. His system has five
activities. Data on the activities and the cost drivers for each
activity are given as follows.
| Activity | Cost Driver | Annual Cost Driver Volume | ||
| Material Handling | Material cost | $ | 28,500,000 | |
| Machining | Machine hours | 950,000 | ||
| Finishing | Units | 125,000 | ||
| Shipping | Orders | 100 | ||
| Setups | Production runs | 175 | ||
Required:
a. What is the unit cost for each of the three
jobs assuming DP, Inc. continues to use its current costing
system?
b. What is the unit cost for each of the three
jobs assuming DP, Inc. adopts the ABC system as designed by the
cost accounting manager? (Do not round intermediate
calculations. Round your final answers to 2 decimal
places.)
In: Accounting
Billionaire real estate mogul Glenn Rhee owns two large parcels
of land in Alexandria, VA: Greenacre and Blueacre. Greenacre is to
the north and Blueacre is directly south. Both parcels of land are
surrounded by protected conservation land. A state highway runs
perpendicular to the properties.
Six years ago, Mr. Rhee decided to leave the real estate business
and open a chain of pizza restaurants called “Maggie’s
Slice.”
Greenacre was quickly purchased by Walker Treatment Inc., which is
a hazardous materials treatment center. For the past six years
Walker Treatment Inc. has crossed over Blueacre in order to reach
the highway that runs perpendicular to the land. Greenacre does not
have its own access to the highway. Walker Treatment Inc. uses the
highway to pick up hazardous waste from all over the county and
processes it at its treatment center. Occasionally, customers will
transport their hazardous waste to Walker Treatment and cross over
Blueacre.
Rick and Michonne Grimes have decided to purchase and develop
Blueacre. They have plans to build a large shopping mall and
high-end condos near the highway to attract commuters. They are
also going to construct a large sound barrier wall to help improve
the ascetics of the mall and condos.
Walker Treatment Inc. has now come to the Grimes asking for an
easement to transport hazardous materials over Blueacre in order to
reach their facility on Greenacre. Rick and Michonne consult their
attorney for answers:
For this assignment, you are the attorney. Please write thorough
responses to the Grimes’ questions below. How would you advise them
on the following topics?
1. Are we in danger of losing our property through adverse possession? Why or why not?
2. As husband and wife, what are our rights in the property?
3. What if Walker Treatment possesses a nuisance with all their trucks, fumes etc. what protections will we have?
4. Are there any special protections against toxic waste?
5. Can the easement be terminated? If so how?
In: Operations Management
In the planning stage of an audit, auditors frequently consider certain financial ratios. For either of the following two ratios, which are at unusual levels, please state one kind of error or fraud which would explain why the ratio is at an unusual level this year.
Ratio #1 The number of days of sales in accounts receivable has increased from 35 to 60. The industry average is 34. [Days of sales in accounts receivable = {ending accounts receivable /sales}*365]
OR Ratio # 2 Salesmen’s commission expense = 4% of sales. Last year it equaled 7%.
Refer to the same two ratios as in the previous question. For the same ratio you discussed in the previous question, State one reason, that is not an error or fraud, which would explain why the ratio is at an unusual level this year. (This might be a business reason.)
In: Accounting
Suppose that the U.S. government decides to charge cola producers a tax. Before the tax, 50 million cases of cola were sold every month at a price of $7 per case. After the tax, 44 million cases of cola are sold every month; consumers pay $10 per case, and producers receive $4 per case (after paying the tax).
In: Economics
The future earnings, dividends, and common stock price of Callahan Technologies Inc. are expected to grow 6% per year. Callahan's common stock currently sells for $21.50 per share; its last dividend was $2.00; and it will pay a $2.12 dividend at the end of the current year.
Using the DCF approach, what is its cost of common equity? Round your answer to two decimal places.
If the firm's beta is 1.3, the risk-free rate is 7%, and the average return on the market is 14%, what will be the firm's cost of common equity using the CAPM approach? Round your answer to two decimal places.
If the firm's bonds earn a return of 8%, based on the
bond-yield-plus-risk-premium approach, what will be rs?
Use the midpoint of the risk premium range. Round your answer to
two decimal places.
%
If you have equal confidence in the inputs used for the three
approaches, what is your estimate of Callahan's cost of common
equity?. Round your answer to two decimal places.
%
In: Finance