Chapter 11: Q. 49 (page 657)
State the decision and conclusion (in a complete sentence) for the following preconceived levels of \(\alpha\).
\(df=\)___
Short Answer
The degree of freedom \(df\) is \(4\).
Chapter 11: Q. 49 (page 657)
State the decision and conclusion (in a complete sentence) for the following preconceived levels of \(\alpha\).
\(df=\)___
The degree of freedom \(df\) is \(4\).
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Get started for freeuse a solution sheet to solve the hypothesis test problem. Go to Appendix E for the chi-square solution sheet. Round expected frequency to two decimal places car manufacturers are interested in whether there is a relationship between the size of the car an individual drives and the number of people in the driverโs family (that is, whether car size and family size are independent).To test this, suppose that car owners were randomly surveyed with the results in Table . Conduct a test of independence.
Family Size | Sub & Compact | Mid-size | Full-size | Van & Truck |
Table 11.44
If , the chi-square distribution has a shape that reminds us of the exponential.
Is it more likely the in the graph?
What is the test statistic?
The standard deviation of heights for students in a school is . A random sample of students is taken, and the standard deviation of heights of the sample is . A researcher in charge of the study believes the standard deviation of heights for the school is greater than .
To find the value of.
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