Assignments 1
Textbook #1: Lane et al. Introduction to Statistics, David M. Lane et al., 2013.
(http://onlinestatbook.com/Online_Statistics_Education.pdf)
Textbook #2:Illowskyet al. Introductory Statistics, Barbara Illowsky et al., 2013.
(http://openstaxcollege.org/files/textbook_version/hi_res_pdf/15/col11562-op.pdf)
Lane - Chapter 1: 3,10,17,18
3. If you are told only that you scored in the 80th percentile, do you know from that description exactly how it was calculated? Explain.
10. For the numbers 1, 2, 4, 16, compute the following: ΣX, ΣX2, and (ΣX)2
For #17 and #18 see the ADHD Treatment Case Study
(Page 624, http://onlinestatbook.com/2/case_studies/adhd.html)
17. What is the independent variable of this experiment? How many levels does it have?
18. What is the dependent variable? On what scale (nominal, ordinal, interval, ratio) was it measure
Illowsky - Chapter 1: 50,52,72,80,84,90
Use the following information to answer #50 and #52:
A Lake Tahoe Community College instructor is interestedin the mean number of days Lake Tahoe Community College math students are absent from class during a quarter.
50. What is the population she is interested in?
a. all Lake Tahoe Community College students
b. all Lake Tahoe Community College English students
c. all Lake Tahoe Community College students in her classes
d. all Lake Tahoe Community College math students
52. The instructor's sample produces a mean number of days absent of 3.5 days. This value is an example of a:
a. parameter.
b. data.
c. statistic.
d. variable.
72. A study was done to determine the age, number of times per week, and the duration (amount of time) of residents usinga local park in San Jose. The first house in the neighborhood around the park was selected randomly and then every eighthhouse in the neighborhood around the park was interviewed. The sampling method was:
a. simple random
b. systematic
c. stratified
d. cluster
80. Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shownbelow:
|
# of Courses
|
Frequency
|
Relative Frequency
|
Cumulative Relative Frequency
|
|
1
|
30
|
0.6
|
|
|
2
|
15
|
|
|
|
3
|
|
|
|
Table: Part-time Student Course Loads
a. Fill in the blanks in the table.
b. What percent of students take exactly two courses?
c. What percent of students take one or two courses?
84. Forbes magazine published data on the best small firms in 2012. These were firms which had been publicly traded for at least a year, have a stock price of at least $5 per share, and have reported annual revenue between $5 million and $1billion. The table shows the ages of the chief executive officers for the first 60 ranked firms.
|
Age
|
Frequency
|
Relative Frequency
|
Cumulative Relative Frequency
|
|
40-44
|
3
|
|
|
|
45-49
|
11
|
|
|
|
50-54
|
13
|
|
|
|
55-59
|
16
|
|
|
|
Age
|
Frequency
|
Relative Frequency
|
Cumulative Relative Frequency
|
|
60-64
|
10
|
|
|
|
65-69
|
6
|
|
|
|
70-74
|
|
|
|
a. What is the frequency for CEO ages between 54 and 65?
b. What percentage of CEOs are 65 years or older?
c. What is the relative frequency of ages under 50?
d. What is the cumulative relative frequency for CEOs younger than 55?
e. Which graph shows the relative frequency and which shows the cumulative relative frequency?
90. Seven hundred and seventy-one distance learning students at Long Beach City College responded to surveys in the 2010-11 academic year. Highlights of the summary report are listed in Table 1.39.
|
Have computer at home
|
96%
|
|
Unable to come to campus for classes
|
65%
|
|
Age 41 or over
|
24%
|
|
Would like LBCC to offer more DL courses
|
95%
|
|
Took DL classes due to a disability
|
17%
|
|
Live at least 16 miles from campus
|
13%
|
|
Took DL courses to fulfill transfer requirements
|
71%
|
|
Table 1.39 LBCC Distance Learning Survey Results
|
a. What percent of the students surveyed do not have a computer at home?
b. About how many students in the survey live at least 16 miles from campus?
c. If the same survey were done at Great Basin College in Elko, Nevada, do you think the percentages would be thesame? Why?
Assignment 2
Paper:
Select a quality topic in healthcare from the list below. Prepare a summary document using the table format below. The table should be single spaced and no more than 3-4 pages in length (11 to 12 point font). Except in the case of titles, use complete sentences, i.e., write using narrative format. Include a cover page and a list of references (this is separate from the summary pages).
Select from the following quality topics. NOTE: If there is another related topic that you would like to write on, please get approval from your Professor.
1. Medical Errors
2. Quality and Disparities
3. Patient Safety
4. Quality/Core Measures
5. Value-based Purchasing
6. Pay for Performance (P4P)
Quality Topic Research Summary
Student Name Type your name here.
Quality Topic Provide the name of the quality topic chosen.
Quality Topic Description Provide a detailed description and origins of the quality topic chosen. Indicate in detail who is affected (and how) by this topic (healthcare providers, patients, healthcare organizations, etc.).
Legislation Research legislation and/or policies related to the quality topic chosen. Provide a detailed description of the policies/legislation. Describe the scope of the legislation and how it impacts the organization, providers, and patients.
Regulatory Research Regulatory Agencies that implement policies and enforce legislation related to the quality topic chosen. Discuss in detail at least three (3).
Conclusion Indicate any upcoming changes, regulations, etc. that will impact the quality topic chosen. What does the future hold for this issue? How should healthcare leaders manage this issue in their organizations?