The figure shows four circles, each with a radius of 6 cm. Find
the area of the region between the circles. (Round your answer to
two decimal places.)
cm2
A student cuts out a circle from a square piece of cardboard. The circle passes through the midpoints of the sides of a square as shown. Each side of the square has a length of 12 units. What percent of the square cardboard is wasted? (Round your answer to two decimal places.)
36.34%27.32% 21.46%25.00%28.54%
A small bucket of paint covers 145 square feet. How many buckets of paint would you need to paint a rectangular wall that is 44 by 17 feet?
7 buckets of paint1 bucket of paint 748 buckets of paint5 buckets of paint6 buckets of paint
A regular hexagon has an apothem of 8.7 cm and perimeter of 60 cm.
(a) What is the area of the hexagon? (Round your answer to the nearest square centimeter.)
A = 87 cm2A = 261 cm2 A = 1044 cm2A = 904 cm2A = 522 cm2
(b) What is the radius of the hexagon? (Round your answer to the
nearest hundredth of a centimeter.)
Use a formula to find the area of the triangle.
square units
r = 10.03 cmr = 7.12 cm r = 4.93 cmr = 13.25 cmr = 13.61 cm
In: Math
Part A. Match the letter of the definition/statement in Column 1 to the term in Column 2 to which the definition corresponds/that completes the statement. (15 points)
|
Definitions/Statements |
Corresponding Term |
|
A. _____ is the transmission of a message from a sender to a receiver via a medium (or channel) of transmission. |
1. Non-traditional media _____ |
|
B. ____ include family members, friends, classmates, fellow consumers. |
2. Order presentation _____ |
|
C. One of the barriers to communication is clutter from competing communication known as ______. |
3. Informal sources B |
|
D. This barrier to communication means that consumers can record programs and watch them later, and skip the ads. |
4. Interpersonal relations ____ |
|
E. The Internet, social media, mobile, people’s bodies, stadiums and arenas, sports jerseys, and subway cars are examples of these. |
5. Testimonial _____ |
|
F. ____ refers to whether advertisers present messages as one-sided messages or as two-sided messages. |
6. Psychological noise _____ |
|
G. Primacy effects and recency effects relate to this issue in message delivery. |
7. Paid social media H |
|
H. When it comes to the use of celebrities in advertising, ____ is based on personal usage, where a celebrity attests to the quality of the product or service. |
8. Exposure effects _____ |
|
I. This method of assessing communication effectiveness measures how many consumers received the message. |
9. Time shift _____ |
|
J. Among the primary reasons for consumer engagement in social media are sharing information with others, passing time, bonding and social capital, and _____. |
10. Persuasion _____ |
|
K. Promotional goals in social and mobile media include awareness; trust; education; loyalty; and _____. |
11. Owned social media _____ |
|
L. When it comes to social media and communication channels, these are messages sent by marketers and delivered to consumers via channels that the marketers control. |
12. Communication A |
|
M. When it comes to social media and communication channels, these are messages sent via channels that are not owned by the marketers, who pay for using the channels. |
13. Earned social media _____ |
|
N. When it comes to social media and communication channels, these are channels where consumers pass along messages about brands to one another. |
14. Branded video _____ |
|
O. According to a recent global survey, nearly half (46%) of consumers have made a purchase as a result of watching this. |
15. Message framing _____ |
In: Economics
One of the biggest changes in higher education in recent years has been the growth of online universities. The Online Education Database is an independent organization whose mission is to build a comprehensive list of the top accredited online colleges. The following table shows the retention rate (%) and the graduation rate (%) for 29 online colleges.
|
Retention Rate (%) |
Graduation Rate (%) |
|---|---|
|
7 |
25 |
|
51 |
25 |
|
4 |
28 |
|
29 |
32 |
|
33 |
33 |
|
47 |
33 |
|
63 |
34 |
|
45 |
36 |
|
60 |
36 |
|
62 |
36 |
|
67 |
36 |
|
65 |
37 |
|
78 |
37 |
|
75 |
38 |
|
54 |
39 |
|
45 |
41 |
|
38 |
44 |
|
51 |
45 |
|
69 |
46 |
|
60 |
47 |
|
37 |
48 |
|
63 |
50 |
|
73 |
51 |
|
78 |
52 |
|
48 |
53 |
|
95 |
55 |
|
68 |
56 |
|
100 |
57 |
|
100 |
61 |
1. Write the regression equation.
2. Interpret the regression constant and regression coefficient.
3. Forecast a value for the dependent variable, test the significance of the regression coefficient at an alpha level of .05. Test the overall significance of the regression model, and Interpret the coefficient of determination.
5. Are there any indications of violations of the general linear model? You must address each assumption separately and explain.
In: Economics
In: Economics
In: Statistics and Probability
A chemical manufacturer has been researching new formulas to provide quicker relief of minor pains. His laboratories have produced three different formulas, which he wanted to test. Fifteen people who complained of minor pains were recruited for an experiment. Five were given formula 1, five were given formula 2, and the last five were given formula 3. Each was asked to take the medicine and report the length of time until some relief was felt. The results below shows the time until relief is Felt.
Formula -1 : 4 8 6 9 8
Formula - 2 : 2 5 3 7 1
Formula - 3 : 6 7 7 8 6
SST = 78.4, SSE=42
(a) Write down the model and the ANOVA table to test whether there
exits any differences in the time of relief exist among the three
formulas? Use α =0.05.
(b) Is the Formula-1 different from Formula-3 at 5% level
In: Math
IRISH CASE STUDY The O’Rourke family lives on a small farm in Iowa and comprises David, aged 30; his wife, Mary, aged 29; and two children: Bridget, aged 7, and Michael, aged 6. Both David and Mary are second-generation Irish. Before purchasing their farm 5 years ago, David sold farm equipment in Ohio. The O’Rourkes are Catholic; Mary converted to Catholicism when they married. 7.Describe the O’Rourke family’s communication patterns. 8.What are the predominant health conditions among Irish immigrants? 9.Explain the significance of the Great Potato Famine for Irish Americans. 10. Name two genetic diseases common among Irish Americans. 11. Identify accepted fertility practices for Irish American Catholics. 12.Identify three sources of strength for the Irish American in times of illness. 13. Identify traditional home remedies commonly used by Irish American
In: Nursing
Exercise 5 (15) In the process of learning how to conduct a sign test, each student inevitably punches their computer screen several times. I have found that students who punch their screens during this exercise can be separated into two categories. The first category believes that this statistics course would be better if they did all of their statistics by hand. The second category is pleased that the course is taught using R. Below is the number of times a computer screen is punched by a student in each category. Assume all assumptions have been met.
|
Hates R |
Loves R |
|
3 |
7 |
|
6 |
10 |
|
7 |
11 |
|
4 |
8 |
|
5 |
9 |
In: Statistics and Probability
Consider a two-step binomial tree for a European put option on a non-dividend paying stock “XY”. The current price of stock “XY” is $60. Over each of the next two 6-month periods the stock price is expected to go up by 10% or down by 10%. The risk-free rate of interest is 8% per annum with continuous compounding. The European put option will expire in 1 year and has an exercise price of $55.
a) Calculate the probabilities that the stock price goes up and down in the risk neutral world. [4 marks]
b) Calculate the stock price at each node of the binomial tree. [7 marks]
c) Use the binomial option pricing formula to calculate the value of the put option at each node of the tree. [12 marks]
d) Can you explain why, in your calculations of the option price, you are allowed to use the risk-free rate of interest? [7 marks]
In: Finance
1. If you were creating a library using the restriction endonucleases SbfI and EcoRI, for which restriction site would you design a fork-tailed adapter? Can you imagine any characteristic of a genome that would cause you to design a fork-tailed adapter for the other restriction site? If you were to use this set of enzymes/adapters to create a library in corn, how many reads would you need for adequate coverage of each individual?
2. How many reads would you need using SbfI/EcoRI in zebrafish to provide adequate cover for each individual? How many would you need for a stickleback fish? Does this make sense, given the size of the respective genomes? How could you explain this observation? Does looking at the results for different enzyme combinations for these two species help to explain the observation?
3. How many individuals could you analyze on a single MiSeq run, if you were using the combination of NlaIII and MluCI on mice?
4. If you were interested in doing a study of population structure in corn, which enzyme combination would you choose? How many individuals could you analyze with a single MiSeq run? How about with a single lane of an Illumina HiSeq 2000?
5. Suppose you were using paired-end sequencing with 250 cycles. How much of the genome of a stickleback fish would you expect to sequence at >7X coverage if you used EcoRI/MspI?
6. You amplify an EcoRI/MspI fragment using MspI 2.1.0 and EcoRI 1.1.0 adapters and the the PCR primers NGS_i5_S505 and NGS_i7_N719. What would the final amplicon look like? (Write the sequence.)
7. What happens to MspI/MspI fragments in the ddRadSeq protocol we are following? How about EcoRI/EcoRI fragments?
8. We are using three different MspI and EcoRI adapters in our protocol. There are a couple of advantages to using more than one adapter for each end; what are they?
9. Taking into consideration the different indices available, and the use of three different adapters for each end of genomic fragments, how many different individuals could be analyzed with a single sequencing run?
10. Suppose you were analyzing mice just as depicted in Table 1. of Petersen et al., using the enzyme pair EcoRI-MspI You want to increase the number of fragments you are analyzing by 50%; how would you adjust your protocol?
11. For SNP discovery, there are concerns that ddRadSeq may limit analysis to regions of the genome with low point mutation rates. Please explain why this would be so.
12. Explain the similarities between ddRadSeq and two-step PCR. Why isn’t a PCR step (instead of ligation) used on the genomic fragments in ddRadSeq?
13. If you were using single step PCR, how many different primers would you need to take full advantage of the indices available from Illumina (S502, N701, etc.) for one locus? How many would be needed if you were using two-step PCR for one locus? How would the answers change for 10 loci?
14. What are the advantages of two-step PCR over one-step PCR? Are there any conditions under which one-step PCR is more efficient?
15. A typical number of cycles for the second PCR in two-step PCR is 10. How many copies of each input molecule would be generated in ten cycles?
16. What would happen if you used two-step PCR, and the primers used in the first step were both compatible with i7 primers? Would amplification happen in the second step of the two-step PCR process? Could the amplicon be sequenced?
In: Biology