Chapter 11: Q.39 (page 657)
Is this a right-tailed, left-tailed, or two-tailed test? Explain why.
Short Answer
It is a right-tailed test.
Chapter 11: Q.39 (page 657)
Is this a right-tailed, left-tailed, or two-tailed test? Explain why.
It is a right-tailed test.
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A teacher predict that the distribution of grades on the final exam will be and they are recorded in table 11.27
The actual distribution for a class of 20 is in table 11.28
test statistic is -------
The Bureau of Labor Statistics gathers data about employment in the United States. A sample is taken to calculate the number of U.S. citizens working in one of several industry sectors over time. Table 11.17 shows the results:
We want to know if the change in the number of jobs is independent of the change in years. State the null and alternative hypotheses and the degrees of freedom .
Is this a right-tailed, left-tailed, or two-tailed test?
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