Summary of article “What to Expect from a Statistician” This article first makes an overview of statistical consultation. It tells me statistical consultant can help me to solve problems in many areas such as planning studies, measurement and sampling methods. It also shows lots of examples of what kinds of problems which the statistician could be helpful with, and what a statistical consultant could do when they play different roles in research study. For example, as a full collaborator or partner, statistician collaborator need negotiated in each project. To involve a statistical consultant, before data collecting, if a statistical consultant could work with the team from very beginning of the project, this make the statistical consultant could gives advice on the structure building and correction, make decisions on data management and find out the threats, and maximize the utilize of available resources, which help on saving time and effort, avoid errors which might shows up in the very late stages. After that, a statistical consultant can help on analysis methods selection and data legality verify. When finishing the data analysis, the statistical consultant should analyze the data again, by using a preferred method. Then in the end of the overview, the article introduced the requirement to find a statistical consultant who best match yourself. The seconds part introduces many precautions for the first consulting session, which says to make a good discussion and let…
analyzing scientific data? Variation to judge whether differences we observe btwn populations are real or due to chance
10. What does sum of squares tell you about a data set? Measure of variation within a group
11. What is meant by “probability” in the context of a statistical test? Due to chance alone
12. Why is replication / sufficient sample size necessary in an experiment? To account for natural variation in population
13. Basic structure of statistical test: null hypothesis:…
One of the benefits of working for United Healthcare Clinical Services is that my company has many departments dedicated to the legalities of healthcare and insurance. I was fortunate enough to be able to sit down with one of the legal nurse consultants on staff at UHC. I shadowed Shannon Mulvey October 11, 2011 in the St. Louis, Missouri office for eight hours. I learned many things during this assignment. The first thing I learned was that legal nurse consulting is not all trials and jet-setting…
Handy EXCEL statistical functions
All EXCEL functions begin with an equal sign and all EXCEL descriptive statistical
functions have at least one range of cells as its argument.
Example: Numerical data is in cells C3:C209. This is the cell range.
=average(C3:C209) will compute the average of all the numbers in C3:C209.
The cell range in this example is C3:C209. The colon is used to denote the cell range.
=average( cell range )
=geomean( cell range)
=median( cell range )
Applied Business Statistics
July, 11, 2013
A misuse of statistics occurs when a statistical argument asserts a falsehood. In some cases, the misuse may be accidental. In others, it is purposeful and for the gain of the perpetrator. “When the statistical reason involved is false or misapplied, this constitutes a statistical fallacy”. (Darrell, 1991)
The false statistics trap can be quite damaging to the quest for knowledge. For example, in medical science…
Statistical analysis is extremely essential for the data analysis, which mainly is used to for examining the internal relationship among the variables. The statistical analysis includes the data descriptive analysis, hypothesis test, regression analysis and others. The descriptive analysis mainly refers to calculate the mean, median, standard deviation, skew and other indicators. T or Z hypothesis test of means or proportions can be used for examining whether the distribution can be…
Research Results: Statistical Inference (modified on March 18)
The dominant method of inference in psychology is statistical testing (also called hypothesis testing; null hypothesis statistical testing).
This involves stating a pair of competing hypotheses about Reality, collecting relevant data, and using the data to make a choice between the two competing hypotheses. This choice is called a “statistical decision”. Statistical decision-making, which involves the possibility of incorrect decisions…
ANU - RSFAS
Semester 1, 2015
1 / 20
What is Statistics?
Statistics is the Science of Data
or Data Science
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Our Increasingly Quantitative World
The world is becoming quantitative. More and more professions, from the
everyday to the exotic, depend on data and numerical reasoning.
Data are not just numbers, but numbers that carry information about
a specific setting and need to be interpreted in that setting. With this
growth in the use of data comes…
are beginning to lose its abilities to provide adequate care and to keep up with the demands of the business due to budgetary issues, inadequate staff, outdated equipment, and its Information Technology systems (IT). I have been asked to lead a consultant team to help Beaufort County Hospital better understand why there is such a high turnover in staff, as well as issues within the IT department. There are several things that must be looked at and changed in order for this hospital to better care…
Uses of Statistical Paper
Our inpatient Psychiatric Unit uses statistical information to provide and track the quality of patient care within our hospital. The statistical information helps to compare our hospital and services offered to that of other inpatient psychiatric hospitals in other communities. Ratings and scores provided in surveys or questionnaires that are completed by patients can provide valuable information to identify what is working…
often sent moving across it trying to reach a different district.
That was how the day of Carrie began as she strolled across from the business district towards the living districts with her trolling rolling behind her. Carrie was a travel beauty consultant, off to sell the products of Mary-Kay to the stay at home women, the ones too afraid to step out of the house and meet their peers at the shopping district for one reason or another. Those were the vulnerable women that Carrie was learnt to target…