I need a Stats practice exercises review chapters 6-7 in Practical Research Methods for Nonprofit and Public Administrators 2011 written by Osullivan Using your O’Sullivan readings, respond to the fol

I need a Stats practice exercises

review chapters 6-7 in Practical Research Methods for Nonprofit and Public Administrators 2011 written by Osullivan

Using your O’Sullivan readings, respond to the following:

1.  In 1-2 paragraphs, discuss specific challenges associated with “people” research.
2. Practically, how can these challenges be worked around or avoided?

Complete the following exercises from your Salkind text. None of the questions this weekrequire the use of SPSS. Save all of your work as one single Word file and upload it for grading.Show your work when required. Chapter 7, “Time to Practice” questions 3, 5, and 6 Chapter 8, “Time to Practice” questions 1, 5, and 9 

Practice questions are provided below 

Chapter 7

Question 3

For the following research questions, create one null hypothesis, one directional research hypothesis, and one nondirectional research hypothesis. 

a. What are the effects of attention span on out-of-seat classroom behavior? 

b. What is the relationship between the quality of a marriage and the quality of the spouses’ relationships with their siblings?

c. What is the best way to treat an eating disorder?

Question 5

What kinds of problems might using a poorly written or ambiguous research hypothesis introduce?

Question 6

What is the null hypothesis, and what is one of its important purposes? How does it differ from the research hypothesis?

Chapter 8

Question 1

What are the characteristics of the normal curve? What human behavior, trait, or characteristic can you think of that is distributed normally? What makes you think it may be distributed normally?

Question 5

The mean of a set of test scores is 50, and the standard deviation is 5. For a raw score of 55, the corresponding z score is +1. What’s the z score when the standard deviation is half as much, or 2.5? From this example, what can you conclude is the effect of decreasing the amount of variability in a set of scores on a standard score (given all else is equal, such as the same raw score), and why is this effect important?

Question 9

Jake needs to score in the top 10% of his class to earn a physical fitness certificate. The class mean is 78, and the standard deviation is 5.5. What raw score does he need to get that valuable piece of paper?