A manufacturer considers his production process to be out of control when defects exceed 3%. In...
- A manufacturer considers his production process to be out of control when defects exceed 3%. In a random sample of 85 items, the defect rate is 5.9% but the manager claims that this is only a sample fluctuation and production is not really out of control. Identify the null hypothesis, alternative hypothesis, test statistics, P-value and At the 0.01 level of significance, test the manager claim.
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A manufacturer considers his production process to be out of
control when defects exceed 3%. In...
Suppose we have 3 distinct people, 4 identical math books, and 5 identical history books. How...
Suppose we have 3 distinct people, 4 identical math books, and 5 identical history books. How many different (distinguishable) ways can ALL the books be distributed to the students? SELECT ALL APPLICABLE CHOICES A) B) 5! 31·41 C) D) None of These 3!.4! 5! A manufacturer considers his production process to be out of control when defects exceed 3 percent. In a random sample of 85 items, the defect rate is 5.9 percent but the manager claims that this is...
A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p,...
A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p, is less than 2 in every ten thousand. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. SELECT ALL APPLICABLE CHO A) There is not sufficient evidence to support the claim that the true proportion is greater than 2 i ten thousand. B) There is...
A manufacturer of calculator batteries claims that the average lifespan of her batteries is more than...
A manufacturer of calculator batteries claims that the average lifespan of her batteries is more than 1300 hours. a. Set up the null and alternative hypothesis needed to substantiate this claim, as if you had reason to believe that this claim is not being met. b. A sample of 16 batteries is tested and it is found that the sample mean is 1280 hours and σ = 40 hours. Do a test of your null hypothesis at the 1% significance...
A surgical clamp manufacturer claims that only 10% of its parts are defective (p = 0.10)....
A surgical clamp manufacturer claims that only 10% of its parts are defective (p = 0.10). Hospital critics claim the defect rate is higher (p > 0.10). Testing of 500 randomly selected parts yields a Z statistic of -4.0. a & b) Write out the null and alternative hypotheses c) Will the computation result in a one- or two-tailed test (on a Bell curve)? d) What does the negative z-score indicate regarding the critical region of the test (on a...
A surgical clamp manufacturer claims that only 10% of its parts are defective (p = 0.10)....
A surgical clamp manufacturer claims that only 10% of its parts are defective (p = 0.10). Hospital critics claim the defect rate is higher (p > 0.10). Testing of 500 randomly selected parts yields a Z statistic of -4.0. a & b) Write out the null and alternative hypotheses c) Will the computation result in a one- or two-tailed test (on a Bell curve)? d) What does the negative z-score indicate regarding the critical region of the test (on a...
there are 4 questions collectively. thanks! For problems 7 and 8, an auto manufacturer claims that...
there are 4 questions collectively. thanks!
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's ears finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 18 years. Use the data to test...
An auto manufacturer claims that the average length of time that one of its cars is...
An auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5% significance level. A. Give the...
For problems 7 and 8, an auto manufacturer claims that the average length of time that...
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5%...
For problems 7 and 8, an auto manufacturer claims that the average length of time that...
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5%...
ses A quality control manager thinks that there is a higher defective rate on the production...
ses A quality control manager thinks that there is a higher defective rate on the production line than the advertised value of p = 0.025. She does a hypothesis test with a significance level of 0.05. Symbolically, the null and alternative hypothesis are as follows: Ho:p=0.025 and Hq:P >0.025. She calculates a p-value for the hypothesis test of defective light bulbs to be approximately 0.067. Choose the correct interpretation for the p-value. Hon ork O A. The p-value tells us...
Suppose we have 3 distinct people, 4 identical math books, and 5 identical history books. How many different (distinguishable) ways can ALL the books be distributed to the students? SELECT ALL APPLICABLE CHOICES A) B) 5! 31·41 C) D) None of These 3!.4! 5! A manufacturer considers his production process to be out of control when defects exceed 3 percent. In a random sample of 85 items, the defect rate is 5.9 percent but the manager claims that this is...
A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p, is less than 2 in every ten thousand. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. SELECT ALL APPLICABLE CHO A) There is not sufficient evidence to support the claim that the true proportion is greater than 2 i ten thousand. B) There is...
there are 4 questions collectively. thanks!
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's ears finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 18 years. Use the data to test...
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5%...
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5%...
ses A quality control manager thinks that there is a higher defective rate on the production line than the advertised value of p = 0.025. She does a hypothesis test with a significance level of 0.05. Symbolically, the null and alternative hypothesis are as follows: Ho:p=0.025 and Hq:P >0.025. She calculates a p-value for the hypothesis test of defective light bulbs to be approximately 0.067. Choose the correct interpretation for the p-value. Hon ork O A. The p-value tells us...
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