Chief Complaint: 74-year-old woman with shortness of breath and swelling. History: Martha Wilmington, a 74-year-old woman with a history of rheumatic fever while in her twenties, presented to her physician with complaints of increasing shortness of breath ("dyspnea") upon exertion. She also noted that the typical swelling she's had in her ankles for years has started to get worse over the past two months, making it especially difficult to get her shoes on toward the end of the day. In the past week, she's had a decreased appetite, some nausea and vomiting, and tenderness in the right upper quadrant of the abdomen. On physical examination, Martha's jugular veins were noticeably distended. Auscultation of the heart revealed a low-pitched, rumbling systolic murmur, heard best over the left upper sternal border. In addition, she had an extra, "S3" heart sound. 9. What is the general term describing Martha's condition? 10. How might Martha's body compensate for the above condition? 11. Martha is started on a medication called digoxin. Why was she given this medication, and how does it work?

Question:

Two weeks after starting digoxin, Martha returns to the physician's office for a follow-up visit. On physical examination, she still has significant hepatomegaly and pitting edema, and is significantly hypertensive (i.e. she has high blood pressure). Her physician prescribes a diuretic called furosemide (or "Lasix"). Why was she given this????

Thanks

Memo 1

To:                       Pricing Manager, Tri-State Region

From:                  Regional Vice President, Tri-State Region

Re:                       Revenue from EPIX

We recently added the EPIX Movie Channels as part of a new tier of programming for our digital video subscribers. The EPIX channels are sold as an add-on package for $9.75 per month, but we would like to potentially increase our revenue from our subscriber base. Currently we have about 15,059 subscribers, generating monthly revenue of $146,823.

Some have suggested we should cut price, as customers tend to be fairly price sensitive for add-on packages. However, in this case, if we lower price for our new subscribers; we really need to cut it to all of our existing subscribers as well. I have some concerns that lowering price will be counter-productive.

The marketing department calculated some subscription levels at various price points in this region, and I need you to perform the analysis. Specifically, I want you to estimate the price sensitivity of customers at the current price. Please address the following questions: (1) If we lower the price, do you think this is likely to lead to higher revenue, and (2) how much potential revenue can we generate and how low should we go with our price?

Thanks for your help.

The average expenditure on Valentine's Day was expected to be 100.89 (USA Today, February 13, 2006). Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 60 male consumers was 130.6, and the average expenditure in a sample survey of 35 female consumers was 63.24 . Based on past surveys, the standard deviation for male consumers is assumed to be 30 , and the standard deviation for female consumers is assumed to be 14 . The z   value is 2.576.
a. At 99% confidence, what is the margin of error?

b. Develop a 99% confidence interval for the difference between the two population means.

One True Love by Educational Level

A study is conducted in which people were asked whether they agreed or disagreed with the statement that there is only one true love for each person. The table below gives a two-way table showing the answers to this question as well as the education level of the respondents. A person’s education is categorized as HS (high school degree or less), Some (some college), or College (college graduate or higher). Is the level of a person’s education related to how the person feels about one true love? If there is a significant association between these two variables, describe how they are related.

Table 1 Educational level and belief in One True Love

Round your answer for the chi-square statistic to one decimal place, and your answer for the p-value to three decimal places.

chi-square statistic =

p-value =

Conclusion: Does the test indicate an association between these two variables?

1. A researcher desires to know whether the typing speed of a secretary (in words per minute) is related to the time (in hours) that it takes the secretary to learn to use a new word processing program. The data are shown below. Speed 48 74 52 79 83 56 85 63 88 74 90 92 Time 7 4 8 3.5 2 6 2.3 5 2.1 4.5 1.9 1.5 First, make a scatter plot of the data. Next, find the correlation coefficient. Lastly, run a hypothesis test to determine if there is a linear relationship between speed and time at the 95% level of confidence.

2. For Problem 1, find the equation of the linear regression line and predict the time for a speed of 72 words per minute.

3. For Problem 1, find the 95% prediction interval for time when the speed is 72 words per minute.

A study was conducted among children aged 8-10 to determine if resting heart rate differed between males and females. Independent samples of 8 females and 8 males were selected from the two respective populations.

The results were as follows (heart rates in beats/min):

Females 71, 80, 80, 75, 78, 77, 81, 82

Males 71, 81, 79, 74, 73, 78, 71, 74

Assume the samples were drawn from normally distributed populations with equal variance.

a) Use α = 0.05 (two-tailed) and assume 80% power.

b) State the null and alternative hypotheses.

c) List the critical value

d) Perform the appropriate statistical test using the attached SAS file.

e) If the decision was to fail to reject Ho, can Ho be accepted?

42-9. Definition of a Security. In 1997, Scott and Sabrina Levine formed Friendly Power Co. (FPC) and Friendly Power Franchise Co. (FPC-Franchise). FPC obtained a license to operate as a utility company in California. FPC granted FPC-Franchise the right to pay commissions to “operators” who converted residential customers to FPC. Each operator paid for a “franchise”—a geographic area, determined by such factors as the number of households and competition from other utilities. In exchange for 50 percent of FPC’s net profits on sales to residential customers in its territory, each franchise was required to maintain a 5 percent market share of power customers in that territory. Franchises were sold to telemarketing firms, which solicited customers. The telemarketers sold interests in each franchise to between fifty and ninety-four A-4 APPENDIX A: ALTERNATE CASE PROBLEMS—CHAPTER 42“partners,” each of whom invested money. FPC began supplying electricity to its customers in May 1998. Less than three months later, the Securities and Exchange Commission (SEC) filed a suit in a federal district court against the Levines and others, alleging that the “franchises” were unregistered securities offered for sale to the public in violation of the Securities Act of 1933. What is the definition of a security? Should the court rule in favor of the SEC? Why or why not? [SEC v. Friendly Power Co., LLC, 49 F.Supp.2d 1363 (S.D.Fla. 1999)]

Adger Corporation is a service company that measures its output based on the number of customers served. The company provided the following fixed and variable cost estimates that it uses for budgeting purposes and the actual results for May as shown below:

When preparing its planning budget the company estimated that it would serve 30 customers per month; however, during May the company actually served 35 customers.

Foundational 9-1

Required:

A. What amount of revenue would be included in Adger’s flexible budget for May?

B. What amount of employee salaries and wages would be included in Adger’s flexible budget for May?

C. What amount of travel expenses would be included in Adger’s flexible budget for May?

D. What amount of other expenses would be included in Adger’s flexible budget for May?

E. What net operating income would appear in Adger’s flexible budget for May?

F. What is Adger’s revenue variance for May? (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values.)

A USA based cable broadband company wants to compare the average customer satisfaction scores between its east coast and west coast customer bases. The customer survey asks for a score between 1 and 5, with 1 being poor and 5 being excellent.
174 east coast customers are surveyed, and the sample mean is 3.51 with a sample standard deviation of 0.51. For the west coast, 355 customers are surveyed, and the sample mean is 3.24 with a sample standard deviation of 0.52.

a. Create a 95% confidence interval for the average score for west coast customers. Interpret this interval in context of the problem.

b. Now say you consider the difference between the average scores between west coast and east coast. Create a 95% confidence interval for the difference in average scores (specify what difference you are considering).

c. The company wants to investigate if the average score of the east coast customers is higher than the average score of the west coast customers. Write the null and alternative to test this hypothesis.

d. Compute the test statistic for this problem and describe how you would obtain the p-value for this test.

e. Say the p-value is very close to 0. In a sentence or two explain what that means in context of this problem.

1) Paula Corporation owns all of the voting common stock of Sally Company. Sally manufactures toys and sells
them to Paula. In turn, Paula sells them to customers. Neither of these companies do anything else. At the
beginning of 2012 neither company had any inventory. During 2012 Sally manufactured 120,000 toys and
sold 100,000 of them to Paula for $10 each and Paula sold 90,000 of these toys to customers for $16 each.
These toys had cost Sally only $7 each to produce. During 2013 Sally manufactured 115,000 toys and sold
98,000 to Paula for $10 each. Paula sold 100,000 toys to customers during 2013 for $16 each. (The
manufacturing cost for Sally was still $7 per toy.) Please determine each of the following:
A. Total Consolidated Sales Revenue for 2013

B. Total Consolidated Cost of Goods Sold for 2013

C. Consolidated Ending Inventory for December 31, 2013

2) During 2014 Sally produced 200,000 toys at a cost of $7 each. Paula produced 30,000 books at a cost of $12
each. Sally sold 120,000 toys to Paula for $10 each and 50,000 toys to customers for $15 each. Paula sold
110,000 of the toys to customers for $16 each and 20,000 books to customers for $20 each. Please
determine each of the following:
A. Total Consolidated Sales Revenue for 2014

B. Total Consolidated Cost of Goods Sold for 2014

C. Consolidated Ending Inventory for December 31, 2014

Part II
t the beginning of 2014 Peri Co. created a wholly owned subsidiary, Speri Co., to handle the marketing and sales of its
products. During 2014 Peri manufactured goods for a total cost of $1,000,000. It sold 80% of these items to Speri for
$1,200,000. Speri sold 75% of what it purchased from Peri to customers for $1,500,000. (Peri only sold to Speri and
Speri only purchased from Peri.) In the 2014 annual consolidated financial statements for Peri and Speri, what should
be reported for each of the following:
A. Total Consolidated Sales Revenue for 2014

B. Total Consolidated Cost of Goods Sold for 2014

C. Consolidated Ending Inventory for December 31, 2014