Level1
f
m
m
f
f
m
f
m
f
f
m
m
f
f
m
f
m
m
f
m
m
Level2
art
math
math
art
math
art
art
art
math
art
math
art
art
art
math
math
math
art
art
math
art
TimeUsed NumClicks
172.202
69
312.285
292
219.131
188
174.382
182
182.595
130
167.684
147
155.382
126
138.
This week we are continuing hypothesis testing. Last week we learned about the t-test, which tests
hypotheses about the mean of a population. What if we are interested in a population proportion
instead of a mean? For example, we want to know if a coin is
We've been focused on hypothesis testing for a couple of weeks now. Remember that a p-value is
the probability of observing data like what we observed, or more extreme, assuming the null
hypothesis is true. We did several examples previously using t-tests
Example 1: A Comparison of Puzzle Completion Times for Men and Women
Example 2: Who Completes Puzzles Faster, Men or Women?
Be sure to delete the examples and leave only your title.
Submitted by
Sina Serati
February 26, 2016
Title (put your title here)
In
This week we will consider regression analysis. We will examine relationships between paired
variables. For example, suppose we are interested in comparing age and income. Each person in
the study has one number for age and one number for income. Since th
Today we will examine probability.
Simulating a Fair Coin Flip
Imagine flipping a fair coin. There are only two outcomes - heads or tails (discounting weird
outcomes like the coin being lost or landing on its edge).
We'd like to simulate that on the compu
Get data loaded into StatCrunch:
Last class you loaded the file titanic3.xls. Go to the MyStatCrunch tab in the top of the
opening screen of StatCrunch. Then choose the MyData link . You'll notice that the file
titanic3.xls is listed. Click on the link an
Today we will examine measures of center and measures of variation.
Mean and Median
1. Enter the following data points into the column labeled var1: 1 2 3 4 5 6 7 8 9 10
Enter the following data points into the column labeled var2: 1 2 3 4 5 6 7 8 9 50
En
Get started in StatCrunch:
Go to http:/www.statcrunch.com
Click on the Subscribe link at the left of the page and follow directions to get access to the
software.
When you are logged in, click on Open StatCrunch.
Get data loaded into StatCrunch:
Download