A can company reports that the number of breakdowns per 8-hour shift on its machine operated assembly line follows a Poisson distribution with a mean of 1.5.

1. What is the probability of exactly three breakdowns on the midnight shift?
2. What is the probability of greater than two breakdowns in one hour?
3. What is the probability that the time between two successive breakdowns is at most three hours?
4. If two hours have gone by without a breakdown, what is the probability that a breakdown will occur in the next one hour?

THIS IS A PUBLIC HEALTH QUESTION

1. Discuss why a needs assessment is so critical to planning a health promotion program. Provide and support at least three reasons.

2. What are the three most important guidelines to follow when putting together a planning committee, and why are they important? Include the role of stakeholders and community partners.

3. Describe the differences between primary and secondary data, and provide two specific examples of each, as it relates to your program topic and assessing the needs of the community

n1=243 n2=405

pˆ1=0.72  p^2=.5  

Use this data to find the 95% confidence interval for the true difference between the population proportions.

Step 1 of 3:

Find the critical value that should be used in constructing the confidence interval

Step 2 of 3:

Find the value of the standard error. Round your answer to three decimal places

Step 3 of 3:

Construct the 95%95% confidence interval. Round your answers to three decimal places.

Excretory System

1.Describe the difference between a hypotonic, isotonic and hypertonic solution. What happens to red blood cells in each?

2.What processes disturb water balance? Why?

3.What biomolecule is the source of nitrogenous waste? Name three forms of nitrogenous wastes. Place these in order of most toleast toxic. Which ones use ATP?

4.Name some animals that are osmoregulators and osmoconformers. What do these terms mean?

5.What are the three functions of excretory organs?

A. Profitability and productivity are two sides of the same coin. Discuss the relationship between them and explain how the use of materials can affect either of them.   

B. Waste in both service and manufacturing organizations have common characteristics. Explain any three such characteristics as it relates to a company manufacturing pencils.                                                                                                    

C. Capacity planning is required to match demand to supply at minimum total cost. Why is it necessary to do so? What three strategies can be adopted to match demand to supply?      

Recall that the definition of arbitrage required the satisfaction of three conditions: one about weights, one about risk and one about returns. Consider the following scenario in a one-factor APT:

What is the expected return of an arbitrage portfolio composed of all three assets, X, Y and Z? Weights will be between +1 and -1.

Answer in percentage without the symbol, i.e. #.##% --> #.##

How long should a key be used before it is replaced? Search the Internet for information regarding cryptoperiods for hash, symmetric, and asymmetric algorithms. Find at least three sources for each of the algorithms. Write a summary of what you find in regards to the recommended times and figure the average time between all three of your sources. Do you agree with the average time for a hash, symmetric, and asymmetric algorithms? What would you recommend for each? Why? Please make sure it is 150 words.

1. How does the GABA-benzodiazepine (BZ) receptor systems contribute to panic attacks/disorders?
2. Describe the areas of the brain that are associated with social anxiety disorder.
3. How is oxytocin associated with social anxiety disorder (SAD)?
4. Discuss the role of neurotransmitters in the expression of generalized anxiety disorder (GAD).  
5. Explain the structural brain changes that occur in people with GAD.
6. Describe the changes seen in the brain structure in patients with PTSD.
7. Briefly discuss the role glucocorticoids may have on the development of PTSD.
8. What is primary pathophysiology of obsessive-compulsive disorder (OCD?
9. Describe the role the dorsal anterior cingulate cortex (dACC) has in reinforcement of obsessive behaviors.

Investment (more tools) and technological improvement (better tools) each contribute to economic growth by making labor more productive. What percentage of the U.S. economy is allocated to investment in a normal year? Also, describe how fast the U.S. economy grows in real terms on a per capita basis in an average year? (10 points)8. Present an analysis that shows how an increase in labor productivity (perhaps from more investment or perhaps from improved technology) will tend to impact the economy. Identify which of your results fit what we actually observe for the U.S. economy over time. Complete your answer to this question by identifying one economic policy you think will help enhance labor productivity. (15 points)9. Identify a change in fiscal policy that will shift the composition of output toward investment. Present a composition of output analysis to explain why the policy you suggest will tend to shift the composition of output toward investment