Entries by Student

write my assignment 11621

A. The owner of a computer repair shop has determined that his daily revenue has a mean of $7000 and a standard deviation of $1200. The daily revenue totals for the next 30 days will be monitored. What is the probability that the mean daily revenue for the next 30 days will exceed $7325?

B. Use your answer from the previous question to answer this question: The owner of a computer repair shop has determined that his daily revenue has a mean of $7000 and a standard deviation of $1200. Unsatisfied with his revenue, he implements a new marketing campaign. He then monitors the mean daily revenue for the next 30 days and finds it to be $7325? Draw a conclusion for your business: Has the marketing campaign increased revenue? Why or why not?

C. You work for a research firm that has been contracted to estimate the mean weekly family expenditure on clothes. Your boss believes that the standard deviation of the weekly expenditure is $125. Make a decision for your research firm: Determine with 96% confidence the number of families that must be sampled to estimate the mean weekly family expenditure on clothes to within $15.

 

"Not answered?"


Get the Answer

write my assignment 4280

She begins the current year with $12,000 in accounts receivable from customers. During the year, she bills customers $210,000 in fees and receives $180,000 in payments on account. $8,000 of the receivables as uncollectible, leaving her a year-end receivable balance of $34,000. What is Arlene”s gross income if a. She uses the cash basis of accounting? Cash basis taxpayers recognize income as it is received. Therefore, Arlene will recognize the $180,000 of cash receipts as her gross income on the cash basis. Her write-off of uncollectible accounts does not affect her gross income because she is on the cash basis and none of the receivables written off would have been previously included in income. B. She uses the accrual basis of accounting?

 

"Not answered?"


Get the Answer

write my assignment 10253

As an epidemiologist you are going to investigate the effect of a new IV drug suspected of causing neoplasms when used to treat a particular type of common infection in the emergency room setting. As your sample, you will use the next 200 patients treated for this infection in a given hospital. For tach case of the infection a medication history will be taken from the patient and from the treating physician; in addition, you will review medical records to verity use of the drug. The patients are considered to have been followed prospectively during the entire course of their illness, because a complete and accurate record of drug use was maintained for each patient. The resultant data are: Forty patients were given the suspected drug during their treatment. Of these patients, 35 developed the neoplasm. In addition, 10 other patients treated for the infection with a different medication developed neoplasms. What is the relative risk between exposure to the drug and the neoplasm? 

a.10 

b.12 

c.14 

d.16 

e.18

 

"Not answered?"


Get the Answer

write my assignment 5738

500

Answer the following 6 questions.

1. We wish to conduct a hypothesis test to determine whether the proportion of students using social networking sites are equal for all four states. What is the value of your test statistic?

2. True or False: At least one state’s population proportion is different from the others. (5% significance)

3. What is the sample proportion for Georgia?

4. Which state has the largest sample proportion?

5. Using the multiple comparison procedures, answer the following:

True or False: There is a significant difference between Georgia and Maryland. (5% significance)

6. Using the multiple comparison procedures, answer the following:

True or False: There is a significant difference between Wyoming and Maryland. (5% significance)

 

"Not answered?"


Get the Answer