Identify the independent and dependent variables.

Imagine you are a researcher who believes that a relaxation technique involving visualization will help people with mild insomnia fall asleep faster. You randomly select a sample of 20 participants from a population of mild insomnia patients and randomly assign 10 to receive visualization therapy. The other 10 participants receive no treatment.

You then measure how long (in minutes) it takes participants to fall asleep. Your data are below. The numbers represent the number of minutes each participant took to fall asleep.

No Treatment (X1)
Treatment (X2)
22
19
18
17
27
24
20
21
23
27
26
21
27
23
22
18
24
19
22
22

Assignment:

To complete this Assignment, submit by Day 7 a response to each of the following:

  • Explain whether you chose to use an independent-samples t test or a matched-samples t test. Provide a rationale for your choice.
  • Identify the independent and dependent variables.
  • Knowing you believe the treatment will reduce the amount of time to fall asleep, state the null and alternate hypotheses in words (not formulas).
  • Explain whether you would use a one-tailed or two-tailed test and why.
  • Explain whether you have homogeneity of variance, and explain how you know. Explain why it is important to know if you have homogeneity of variance.
  • Identify the obtained t value for this data set using SPSS.
  • Identify the degrees of freedom and explain how you determined it.
  • Identify the p value.
  • Explain whether you should retain or reject the null hypothesis and why.
  • Explain what you can conclude about the effectiveness of visualization therapy.
  • Submit three documents for grading: your text (Word) document with your answers and explanations to the application questions, your SPSS Data file, and your SPSS Output file.
  • Provide an APA reference list.

What are some potential sources of stress for Sarah?

Assignment 1: Discussion Question

David and Sarah are married and have two young children. Both David and Sarah have full-time jobs. David is an accountant, and Sarah is a lawyer.

Sarah is working on a tough case at work and often comes home from work in a bad mood. She takes out her frustration on David and the children by yelling and losing patience with them. David concludes that Sarah’s on-the-job stress is affecting her behavior at home.

  • What are some potential sources of stress for Sarah?
  • Which model of work-family conflict do you think best explains what Sarah is experiencing — the spillover model, the compensation model, or the segmentation model?
  • If you were an employer, what types of work-life supports would you offer?
  • Discuss the advantages, risks, and considerations of each work-life support. Provide a summary of coping skills and techniques Sarah may utilize to combat stress and strain.

Project Risk Analysis -Sensitivity Analysis

Project Risk Analysis -Sensitivity Analysis

Project Risk Analysis -Sensitivity Analysis. HMG is considering the manufacture of a new chemical compound that is used to make high-pressure plastic containers. An investment of $4 million in plant and equipment is required. The firm estimates that the investment will have a five year life, using straight-line depreciation towaard a zero salvage value. However, the investment has an anticipated salvage equal to 10% of its original cost. The number of pounds of the chemical compound that HMG expects to sell over the five year life of the project are as follows (in millions): 1, 1.5, 3, 3.5, and 2. To operate the new plant, HMG estimates that it will incur additional fixed cash operating expenses of $1 million per year and variable operating expenses equal to 45% of revenues. Furthermore, HMG estimates that it will need to invest 10% of the anticipated increase in revenues each year in net working capital. The price per pound for the new compound is expected to be $2 in Years 1 and 2, then $2.50 per pound in Years 3 through 5. HMG’s tax rate is 38%, and it requires a 15% rate of return on its new product investments.

a. What are the key sources of risk that you see in this project?

b. Use the “goal seek” function within Excel to find the breakeven values for each of the following variables: the initial CAPEX, the working capital percentage of revenue growth, variable cost % of sales, and sale volume

c. Which of the variables analyzed in part b do you think is the greatest source of concern? What, if anything, could you do to reduce the risk of the project?

d. Should you always seek to reduce project risk?

Measures Of Central Tendency And Dispersion With SPSS

The assignment:

  • State the statistical assumptions of this test.
  • Using the data set and variables you have selected, use SPSS to calculate the following:
    • Mean
    • Median
    • Mode
    • Range
    • Minimum
    • Maximum
    • Standard deviation
  • Generate syntax and output files in SPSS. You will need to copy and paste these into your Application document.
  • Use one kind of chart (any kind) to describe the data.
  • Based on your SPSS analysis, craft up to a one page double-spaced write up of the statistical results (include any additional pages needed for any APA tables or graphs and the SPSS syntax and output). Your report should include:
    • SPSS syntax and output files
    • 1 chart
  • file:///C:/Users/Windows%208.1/Desktop/Monique%20School%20Folder/gss04student_corrrected.sav – This is the data
  • Cite from the following:
  • Frankfort-Nachmias, C., & Nachmias, D. (2008). Research methods in the social sciences (7th ed.). New York: Worth.

    Marques, S., & Lima, M. L. (2011). Living in grey areas: Industrial activity and psychological health. Journal of Environmental Psychology, 31(4), 314-322. doi:10.1016/j.jenvp.2010.12.002

    ODEBOOK

    Exclusively 2004 GSS Data

    Compiled from the General Social Surveys, 1972-2004 [Cumulative File]:

    Available at

    http://sda.berkeley.edu/archive.htm

    This codebook lists all variables included in both data files. Each variable is listed with an abbreviated variable name (in capital letters), the exact wording of the question used in the GSS survey, and the response categories with their corresponding codes. Both the variable names and the codes for each response category are included in the SPSS data files.

    ABANY

    Please tell me whether or not you think it should be possible for a pregnant woman to obtain a legal abortion if the woman wants it for any reason?

    0 Not Applicable

    1 Yes

    2 No

    8 Don’t know

    9 No answer

    ABDEFECT

    Please tell me whether or not you think it should be possible for a pregnant woman to obtain a legal abortion if there is a strong chance of serious defect in the baby?

    0 Not Applicable

    1 Yes

    2 No

    8 Don’t know

    9 No answer

    ABHLTH

    Please tell me whether or not you think it should be possible for a pregnant woman to obtain a legal abortion if the woman’s own health is seriously endangered by the pregnancy?

    0 Not Applicable

    1 Yes

    2 No

    8 Don’t know

    9 No answer

    ABNOMORE

    Please tell me whether or not you think it should be possible for a pregnant woman to obtain a legal abortion if she is married and does not want any more children?

    0 Not Applicable

    1 Yes

    2 No

    8 Don’t know

    9 No answer

    ABPOOR

    Please tell me whether or not you think it should be possible for a pregnant woman to obtain a legal abortion if the family has a very low income and cannot afford any

    more children?

    0 Not Applicable

    1 Yes

    2 No

    8 Don’t know

    9 No answer

    ABRAPE

    Please tell me whether or not you think it should be possible for a pregnant woman to obtain a legal abortion if she became pregnant as a result of rape?

    0 Not Applicable

    1 Yes

    2 No

    8 Don’t know

    9 No answer

    ABSINGLE

    Please tell me whether or not you think it should be possible for a pregnant woman to obtain a legal abortion if she is not married and does not want to marry the man?

    0 Not Applicable

    1 Yes

    2 No

    8 Don’t know

    9 No answer

    AFFRMACT

    Some people say that because of past discrimination, blacks should be given preference in hiring and promotion. Others say that such preference in hiring and promotion of

    blacks is wrong because it discriminates against whites. What about your opinion — are you for or against preferential hiring and promotion of blacks?

    0 Not Applicable

    1 Strongly support preference

    2 Support preference

    3 Oppose preference

    4 Strongly oppose preference

    8 Don’t know

    9 No answer

    AGE

    Respondent’s age

    98 Don’t know

    99 No answer

    ATTEND

    How often do you attend religious services?

    0 Never

    1 Less than once a year

    2 Once a year

    3 Several times a year

    4 Once a month

    5 2-3 times a month

    6 Nearly every week

    7 Every week

    8 More than once a week

    9 Don’t know, No answer

    BIBLE

    Which of these statements comes closest to describing your feelings about the Bible?

    0 Not applicable

    1 The Bible is the actual word of

    God and is to be taken literally, word for word

    2 The Bible is the inspired word of God but not everything in

    it should be taken literally, word for word

    3 The Bible is an ancient book

    of fables, legends, history, and moral precepts recorded by men

    4 Other

    8 Don’t know

    9 No answer

    BLKSIMP

    In the past few years, do you think conditions for black people have improved, gotten worse, or stayed about the same?

    0 Not applicable

    1 Improved

    2 Gotten worse

    3 About the same

    8 Don’t know

    9 No answer

    CAPPUN

    Do you favor or oppose the death penalty for persons convicted of murder?

    0 Not applicable

    1 Favor

    2 Oppose

    8 Don’t know

    9 No answer