MATLAB: A Practical Introduction to Programming and Problem Solving
5th Edition
ISBN: 9780128154793
Author: Stormy Attaway Ph.D. Boston University
Publisher: Elsevier Science
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Chapter 12, Problem 1E
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Are there less children diagnosed with Autism Spectrum Disorder (ASD) in states that have larger urban
areas over states that are mostly rural?
Assume data were collected from a fairly urban state and they found 195 eight-year olds diagnosed with
AGD out of 18183 eight-year olds evaluated.
Assume data were then collected for a fairly rural state and they found 54 eight-year olds diagnosed with
AGD out of 2179 eight-year olds evaluated.
is there enough evidence to show that the proportion of children diagnosed with ASD in the fairly urban
state is lower than the proportion in the fairly rural state?
a.) Test at the 3% level
b.) Compute a 97% confidence interval for the difference in proportions.
Use the following steps for the hypothesis test.
For the confidence interval you do not need to do all the steps since you did some of them already in
hypothesis test.
Part a.) HYPOTHESIS TEST
Parameter
What is the correct parameter symbol and wording for population 1?
P
The proportion of all…
In 1912 the luxury liner Titanic struck an iceberg and sank on its first voyage. Some passengers got off the ship in lifeboats, but many died. Here is information about who lived and who
died, by gender.
Men
Women
Total
Died
680
126
806
Survived
168
317
485
Total
848
443
1291
Now look at the data set comparing gender and survival.
1. Suggest two tests you can do to see if there is a relationship.
2. For each test, clearly formulate the null and alternative hypothesis. Make sure to define any parameters you used when setting up the null and alternative hypothesis.
When there are two independent samples to compare
two population means,
if we don't know that the population variances are
equal, then
it does not matter because there are paired
samples.
do not assume population variances are equal.
assume population variances are equal.
none of these.
Chapter 12 Solutions
MATLAB: A Practical Introduction to Programming and Problem Solving
Chapter 12, Problem 12.1PChapter 12, Problem 12.2PChapter 12, Problem 1EChapter 12, Problem 2EChapter 12, Problem 3EChapter 12, Problem 4EChapter 12, Problem 5EChapter 12, Problem 6EChapter 12, Problem 7EChapter 12, Problem 8E
Chapter 12, Problem 9EChapter 12, Problem 10EChapter 12, Problem 11EChapter 12, Problem 12EChapter 12, Problem 13EChapter 12, Problem 14EChapter 12, Problem 15EChapter 12, Problem 16EChapter 12, Problem 17EChapter 12, Problem 18EChapter 12, Problem 19EChapter 12, Problem 20EChapter 12, Problem 21EChapter 12, Problem 22EChapter 12, Problem 23EChapter 12, Problem 24EChapter 12, Problem 25EChapter 12, Problem 26EChapter 12, Problem 27EChapter 12, Problem 28EChapter 12, Problem 29E
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