The building specifications in a certain city require that the sewer pipe used in residential areas have a mean breaking strength of more than 2500 pounds per lineal foot. A manufacturer who would like to supply the city with sewer pipe has submitted a bid and provided the following information: An independent contractor randomly selected seven sections of the manufacturer’s pipe and tested each for breaking strength. The results (pounds per lineal foot) are as follows: 2610, 2750, 2420, 2510, 2540, 2490, and 2680.

1. What type of test should be conducted?

Dependent t test

Independent t test

One sample t test

2. State the null hypothesis in equation format.

3. State the alternative hypothesis in equation format.

4. What is the calculated t-value (to 3 significant digits)?

5. What is the critical t-value (to 3 significant digits)? Use alpha = 0.05.

6. Is the null hypothesis accepted or rejected? Use alpha = 0.05.

7. Is there sufficient evidence to conclude that there is a difference between the mean rate of increase of total phosphorus of the control algal and the water hyacinth? Use alpha = 0.05. Explain in one sentence.

Discuss why the median is a more stable measure of central tendency than the mean. Provide an original example in your discussion. (2 pts)

3. Why do we generally consider the mean to be a more precise measure of central tendency than either the median or the mode? (1 pt)

4. Discuss why a mean should not be used with ordinal level variables. Justify your answer. (1 pt)

5. For each of the following, indicate the measure of central tendency that would be most appropriate, and indicate why. (6 pts)

a. An income distribution in which 97% of the cases are in a range of $20,000 to $90,000 and a few cases are between 0 and $5,000.

b. Data reporting the religious preferences of 100 social work students.

c. A grouped frequency distribution of the variable age that has an open-ended interval of over 65 years

6. The measures of central tendency have been reported for three different social service agencies for the variable number of years employed in the agency as follows:

Use the measures of central tendency to describe and compare the staff of the three agencies. (5 pts)

7. Fifteen students were registered in Section 1 and 15 students were registered in Section 2 of a research course. They took the same midterm exam, and their exam scores were distributed as follows:

Section 1: 89, 56, 45, 78, 98, 45, 55, 77, 88, 99, 98, 97, 54, 34, 94

Section 2: 77, 88, 87, 67, 98, 87, 55, 77, 45, 44, 88, 99, 69, 67, 98

a. Calculate the mode, median, mean, range, variance, and standard deviation for both sections. Include your SPSS output below. (10 pts)

b. Which section did better overall on the exam? Fully justify your answer using the concepts in W&G Chapter 3. (3 pt

What is the best theory for you in terms of practical usefulness? Think about your current or future role as an administrator or clinician. Will you use any of these theorists in making decisions

What is the best theory for you in terms of practical usefulness? Think about your current or future role as an administrator or clinician. Will you use any of these theorists in making decisions?

What is the best theory for you in terms of practical usefulness? Think about your current or future role as an administrator or clinician. Will you use any of these theorists in making decisions

Watch the video titled “Heat and Temperature Introduction” (2 min 30 sec) under the Temperature and Heat terms section of the Science Corner. You can also view the video at https://www.youtube.com/watch?v=v1zOnyC4RgQD. Next, describe the fundamental differences and similarities between temperature and heat. Then, analyze how heat transfer occurs during the processes of conduction and convection. Provide one (1) example of where each occurs in natural physical systems. Watch the video titled “USGS Gas Hydrates Lab” (6 min 44 sec) under the Gas Hydrate terms section of the Science Corner. You can also view the video at https://www.youtube.com/watch?v=U46XOoU0DrM#t=12. Next, explain the main reasons why pressure and temperature play a critical role in the stability of gas hydrates. Identify at least two (2) situations where methane hydrate deposits predominantly occur and discuss the key challenge(s) in locating and harvesting methane hydrate under each situation. Suppose it is a very hot summer day and you want to cool your kitchen. Unfortunately the windows and doors in your kitchen cannot be opened. You have either a fan or a refrigerator to cool the kitchen. Which do you believe would be more effective to cool the room? Explain your answer.

You are appointed to a task force in your health agency that has been asked to make recommendations about personal health electronic records for your patient population. Your team has been asked to evaluate the following:

What level of access should patients to the EHR in use by your healthcare organization (should patients have access to everything in their record or just specific parts?)

What are the opportunities to promote patient engagement and better care coordination through the implementation of a Personal Health Record for your patients?

What are the potential challenges and barriers to use with your patient population?

1) Eddie, an overweight 40-year-old, decides it’s time for his first physical in ten years. He has no history of heart issues, but his father died of a myocardial infarction at age 41 and his mother is diabetic. What tests would the MD order to get a read on his heart? The doctor would also tell him to take a daily over the counter anticoagulant. What should he buy at the drug store?

2) Explain why mature red blood cells cannot undergo mitosis.

in what section of the care plan would you find information on the client's cognitive status?

A) ADL B) BDL section c)CCL section D)memory & orientation

What organization is responsible for assisting clients for possible placement in LTC & /or Assisting of home care services?

A) CCAC B)CCO C) RNAO D)RHPA