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Exercises 1 to 4 describe experiments that require a hypothesis test. For each experiment, describe the appropriate test. State the appropriate null and alternate hypotheses, describe the test statistic, and specify which table should be used to find the P-value. If relevant, state the number of degrees of freedom for the test statistic.
3. A new quality-inspection program is being tested to see if it will reduce the proportion of parts shipped out that are defective. Under the old program, the proportion of defective parts was 0.10. Two hundred parts that passed inspection under the new program will be sampled, and the number of defectives will be counted. The new program will be implemented if it is shown that the proportion of defectives is less than 0.10.
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PRACTICE OF STATISTICS F/AP EXAM
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- the following display from a TI-84 Plus calculator presents the results of a hypothesis test for a population proportion p. Prop > 0.29 Z = -1.25 p = 0.10565 p̂ = 0.219 n = 64 what is the value of the sample proportion p̂? A). 0.10565 B). 0.219 C). 0.29arrow_forwardSet up the null and alternate hypotheses to test whether the population mean is equal to 10 when you have a sample mean. H0: Ha:arrow_forward
- College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning