properties for sale in Wake County, North Carolina. I have already looked closely at the dataset for almost a week and just begin to have a general sense of what variables might have influence on the price of the house.
Even before I start to look at the dataset, I am almost 100% confident that the area of...
and graphs
Use spreadsheets and graphs to help analyze an industry.
Graphically demonstrate market growth and opportunities.
Integrate words, numbers, and images in order to create a graph
that can serve as the effective basis for making a decision.
5. Describe when each type of graph (line, bar...
Imagine that a line on a Cartesian graph is approximately the distance y in feet a person walks in x hours. What does the slope of this line represent? How is this graph useful? Provide another example for your colleagues to explain.
The slope of the line represents the speed of the person in feet...
neutral agree disagree, eg smoke = never sometimes often GRAPHS = Categorical = Bar & Pie, Quant = Stem & Leaf, Hist, Boxplot
Bar chart – cat on horizontal axis, count or % on vertical, bars don’t touch (simple to construct but not easy to see what fraction of whole 1 cat is.
Pie chart – cat – good showing...
..................................................................................... 3
What is Integrated Reasoning? .................................................................................... 6
What are the different parts? ..................................................................
Nature of Statistics
[Agresti & Finlay (1997), Johnson & Bhattacharyya (1992), Weiss
(1999), Anderson & Sclove (1974) and Freund (2001)]
1.1
What is statistics?
Statistics is a very broad subject, with applications in a vast number of
diﬀerent ﬁelds. In generally one can say that statistics...
and understand the properties that distinguish experimental methods from correlational methods
Displaying Data (Chapter 2 – Munro e-Book)
Know what a distribution is and why examining a distribution can be helpful/useful
Know how to interpret information from:
Simple frequency distributions (grouped...
file
“Major assignment data find your name.xls”.
and print it out to get 2 marks out of 2 for this section
However you really should think about what is going on
You should understand that different students have different samples and they get different results. If you really think about this you...
the following, which forms the basis of most of
statistical inference:
If X and Y are two independent random variables, then the sum X + Y (or difference X – Y) has
variance given by:
2
2
2
2
2
2
! X + ! Y = ! X +Y (or ! X + ! Y = ! X "Y )
These bear at least a formal similarity to the more...
• Optimization
• Measuring uncertainty
• Decision analysis with uncertainty
• Modeling and simulation
• Sensitivity Analysis
1
What is Management Science?
• Logical, systematic approach to decision
making using quantitative methods.
• Science Scientific methods used to
solve...
This will create a Minitab Worksheet ﬁle in the form of filename.mtw. After you perform some tasks in Minitab with a particular worksheet (e.g. create graphs and invoke analyses) you can save all the work you have done by choosing File -> Save Project as. This will create a Minitab Project ﬁle in the form...
Construct and interpret histograms, polygons,
and ogives.
LO 2.5: Construct and interpret a stem-and-leaf
diagram.
LO 2.6: Construct and interpret a scatterplot.
McGraw-Hill/Irwin
2-2
House Prices in Southern California
House Prices in Southern California
A relocation specialist for a...
disagree, based on what you read in Chapter 1? Explain.
3. According to the authors, what are the “three simple steps to doing Statistics right?” 4. What do the authors refer to as the “W’s of data?” 5. Why must data be in context (the W’s)?
6. Explain the differencebetween a categorical variable...
if StatTools/Excel provided 8 decimal places, is it necessary to display 8 decimal places?
* -------------------------------------------------
graphs, tables, etc are appropriately and informatively labelled, with chart titles, axis titles, legends, etc – as appropriate.
If you...
anything calculated from the sample.
Descriptive Sta: cannot make conclusion. Inferential: draw conclusion
Categorical: Bar graph & Pie graph/ Pareto Chart: bar graph with categories ordered from most frequent to leas frequent. (identify the most important few categories.)OTHER !
Mean: Not resistant...
Visualization
What is it?
Visualization is a technique to graphically represent sets of data. When data is large or abstract, visualization can help make the data easier to read or understand.
Data visualization is the graphical representation of information. Bar charts, scatter graphs, and maps are...
58 58 60 61 61 61 63
1 A questionnaire and what to do with it: types of data and relevant analyses
1.1 The questionnaire 1.2 What types of analyses can we perform on this questionnaire? 1.2.1 Descriptive statistics 1.2.2 Relationships and differences in the data 1.3 Summary 1.4 Exercises 1.5 Notes
...
changes are needed.
Correlation Research: Correlation Research is one type of quantitative research. It seeks to determine the degree of relationship between two or more variables.
Field Notes: Detailed accounts of observations written by the researcher while studying the environment of the participants...