Stat 217
Applets
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Applet Name |
First Use |
Description |
How to use |
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Long-run
relative frequency of number of matches |
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Optional
(Investigation 1) |
Allows you
to generate random data or alter data or upload data and then guess the
values of the mean/median/standard deviation/IQR. |
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Optional
(Investigation 1) |
Allows you
to plot data in a histogram and to try different bin widths. |
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Distribution
of number of successes in repeated samples of a set of coin tosses |
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Investigation
2 |
Distribution
of proportion of success repeated samples from a process with success
probability "pi" |
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Investigation
3 |
Distributions
of sample results in random samples from Gettysburg Address |
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Lab 2 |
Sampling distribution
of sample proportion (simulation and normal approximation) | ||
| Normal Probability Calculator applet | | Calculate probabilities and percentiles from a normal distribution | Visual demo |
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Carry out
one and two-sample tests and confidence intervals based on normal distribution |
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Day 16 |
Distribution
of differences in explanatory variables groups from random assignment |
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Lab 3 |
Distribution
of difference in success rates from random assignment |
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Sampling
Means Simulation applet |
Lab 4 |
Draws samples
from different theoretical populations and displays distribution of sample
means, t-statistics |
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Investigation
5 |
Explore
properties of confidence intervals for pi and mu (not for analysis) |
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Week 5 Reading |
Explore
sampling distribution of sample mean from right skewed population |
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Week 5 Reading |
Explore
sampling distribution of sample mean from uniform population |
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Lab 6 |
Re-randomizes
quantitative response across two groups, displays distribution of differences
in sample means |
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Lab 5 |
Randomly
swaps values for paired data, displays difference of mean differences |
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Guess value
of r for random scatterplots |
How to use |
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Lab 8 |
Explore
properties of least squares lines and exampling distribution of sample slopes from repeated shuffles |
How to use |
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| Chi-square scramble applet (don't use IE) | Lab 9 | Explore properties of scrambling a categorical response and examkining different statistics | |
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Additional
Applets: |
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Creating Boxplots |
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Allows you
to generate boxplots by copying and pasting in
your data. For parallel boxplots, use the formal x, y. and Graph by Category. |
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Explore
properties of ANOVA table and p-value |
How to use |
The applets
in italics can be used for analysis as well as for demonstration/simulation.
