Chapter 11: Q.36 (page 656)
The degree of freedom is.
Given data:
The number of columns is and the number of rows is
To calculate the degree of freedom is
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A factory manager needs to understand how many products are defective versus how many are produced. The number of expected defects is listed in Table 11.5.
A random sample was taken to determine the actual number of defects. Table 11.6 shows the results of the survey.
State the null and alternative hypotheses needed to conduct a goodness-of-fit test, and state the degrees of freedom.
Perform a goodness-of-fit test to determine whether the local results follow the distribution of the U.S. overall student population based on ethnicity.
A sample of students is taken. Of the students surveyed,were music students, while were not. Ninetyseven were on the honor roll, while were not. If we assume being a music student and being on the honor roll are independent events, what is the expected number of music students who are also on the honor roll?
According to Dan Lenard, an independent insurance agent in the Buffalo, N.Y. area, the following is a breakdown of the amount of life insurance purchased by males in the following age groups. He is interested in whether the age of the male and the amount of life insurance purchased are independent events. Conduct a test for independence.
What is the p-value?
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