Calculate mean standard deviation and variance of systolic
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April 24, 2020Solution-Did you like your food intake for the days record
April 24, 2020Calculate mean standard deviation and variance of systolic
Assignment: Summarizing Data and Probability
Introduce basic measures of centrality and dispersion that are used to summarize and describe a data set. We use these sample statistics to estimate the true, but unknown, population parameters.
Problem 1:
For the first problem you will need to refer to the following table of blood pressure data collected at a local blood drive.
Blood Pressure Data
|
Patient ID |
Systolic |
Diastolic |
|
1 |
160 |
110 |
|
2 |
150 |
90 |
|
3 |
110 |
60 |
|
4 |
120 |
80 |
|
5 |
130 |
70 |
|
6 |
150 |
90 |
|
7 |
130 |
80 |
|
8 |
120 |
60 |
|
9 |
90 |
40 |
Using the data in the preceding table to:
• Calculate the mean, median, standard deviation, and variance of the systolic and diastolic blood pressure measurements using the formulas provided in the course text. In your write-up, show the formulas you use to calculate each statistic.
• Create a histogram and box plot for systolic blood pressure and a histogram and box plot for diastolic blood pressure.
• Scan your completed work into an image file and then insert it into a Word document.
• You could also create the histogram and box plot charts with Excel or use the PASS software that came with your text.
• You will then need to copy and paste the output from the Excel or PASS software into the Word document with your work for Problem 2.
Problem 2:
• Briefly interpret the results from Problem 1. Describe what the numerical summary statistics you calculated signify and what the visual displays suggest.
• Do you think the distribution of either systolic or diastolic blood pressure in this sample follows a normal distribution?
• Be sure to include Problem 1 in the same document as Problem 2.
Problem 3:
You were introduced to probability theory and how it allows us to interpret random phenomena. To prepare for this
Assignment, review Chapters 3 and 4 in the course text for examples of how clinicians use probability in research and practice.
To complete this Application Assignment, write a 1-page paper addressing the following:
• Identify two specific ways in which probability is used in clinical research. These may relate, for instance, to relative risk, odds ratio, and number needed to treat.
• Briefly discuss the impact or importance of probability in clinical research and practice.
