The Nero Match Company sells matchboxes that are supposed to have an average of 40 matches per box, with σ = 10. A random sample of 90 matchboxes shows the average number of matches per box to be 42.8. Using a 1% level of significance, can you say that the average number of matches per box is more than 40? What is the value of the sample test statistic?
The Nero Match Company sells matchboxes that are supposed to have an average of 40 matches per box, with σ = 10. A random sample of 90 matchboxes shows the average number of matches per box to be 42.8. Using a 1% level of significance, can you say that the average number of matches per box is more than 40? What is the value of the sample test statistic?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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The Nero Match Company sells matchboxes that are supposed to have an average of 40 matches per box, with σ = 10. A random sample of 90 matchboxes shows the average number of matches per box to be 42.8. Using a 1% level of significance, can you say that the average number of matches per box is more than 40?
What is the value of the sample test statistic?
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