Business, 22.07.2021 21:50 yadirachavez2002
A rods manufacturer makes rods with a length that is supposed to be 11 inches. A quality control technician sampled 40 rods and found that the sample mean length was 11.05 inches and the sample standard deviation was 0.21 inches. The technician claims that the mean rod length is more than 11 inches.
1. What type of hypothesis test should be performed?
2. What is the test statistic?
3. What is the number of degrees of freedom?
4. Does sufficient evidence exist at the α=0.01 significance level to support the technician's claim?
Answers: 2
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Answers: 2
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Business, 23.06.2019 21:00
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A rods manufacturer makes rods with a length that is supposed to be 11 inches. A quality control tec...
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