# CUNY College of Staten Island Statistics Worksheet

Week 3 HW

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• Polly M.’s symptom score is 6, her Risk Reduction score is 8, and her weight is 160 lbs. Construct free hand number lines and show her place on the normal distribution for each variable. About what percentage of women have more symptoms, practice more risk reduction, and weigh more than Polly?
• If the mean is 50 and the SD is 8, what percentage of scores fall between 42 and 58?
• If the mean is 50 and the SD is 8 approximately 95% of the scores fall between ___ and ___
• If the mean is 50 and the SD is 8 approximately 99% of the scores fall between ____ and ____
• What type of sample did Fu and colleagues use?
• What was their population of interest?
• Did they do a good job of sampling that population?
• How might they have improved their sampling strategy?
• What is the SE Mean for Weight in the Fu article? In your own words, what does that mean?
• What is the SE Mean for Risk Reduction (full sample) In your own words, what does that mean?
• What is the SE Mean for Symptoms (full sample)? In your own words, what does that mean?
• Clinical Scholarship
Breast-Cancer-Related Lymphedema: Information,
Symptoms, and Risk-Reduction Behaviors
Mei R. Fu, Deborah Axelrod, Judith Haber
Purpose: To explore the effect of providing lymphedema information on breast cancer survivors’ symptoms and practice of risk-reduction behaviors.
Design: A cross-sectional design was used to obtain data from 136 breast-cancer survivors in
New York City from August 2006 to May 2007. Descriptive statistics, t tests, chi-square
tests, and correlations were calculated.
Methods: Data were collected using a demographic and medical information interview
tool, two questions regarding status of receiving lymphedema information, the Lymphedema and Breast Cancer Questionnaire, and Lymphedema Risk-Reduction Behavior
Checklist.
Findings: Fifty-seven percent of the participants reported that they received lymphedema information. On average, participants had three lymphedema-related symptoms. Only 18%
of participants were free of symptoms. Participants who received information reported significantly fewer symptoms (t=3.03; p

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