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An important problem in industry is shipment damage. A electronics distribution company ships its product by truck and determines that it can meet its profit expectations if, on average, the number of damaged items per truckload is fewer than 12. A random sample of 12 departing truckloads is selected at the delivery point and the average number of damaged items per truckload is calculated to be 11.3 with a calculated sample of variance of 0.49. Select a 95% confidence interval for the true mean of damaged items. a) O (10.86, 11.74) b) O (11.56, 12.44) c) O (-0.4446, 0.4446) d) O (10.69, 11.91) e) O [48.92, -29.36] f) O None of the above

An important problem in industry is shipment damage. A electronics distribution company ships its product by truck and determines that it can meet its profit expectations if, on average, the number of damaged items per truckload is fewer than 12. A random sample of 12 departing truckloads is selected at the delivery point and the average number of damaged items per truckload is calculated to be 11.3 with a calculated sample of variance of 0.49. Select a 95% confidence interval for the true mean of damaged items. a) O (10.86, 11.74) b) O (11.56, 12.44) c) O (-0.4446, 0.4446) d) O (10.69, 11.91) e) O [48.92, -29.36] f) O None of the above

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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An important problem in industry is shipment damage. A electronics distribution company ships its product by truck and determines that it can meet its profit expectations if, on average, the number of damaged items per truckload is fewer than 12. A random sample of 12 departing truckloads is selected at the delivery point and the average number of damaged items per truckload is calculated to be 11.3 with a calculated sample of variance of 0.49. Select a 95% confidence interval for the true mean of damaged items. a) O (10.86, 11.74) b) O (11.56, 12.44) c) O (-0.4446, 0.4446) d) O (10.69, 11.91) e) O [48.92, -29.36] f) O None of the above
Transcribed Image Text:An important problem in industry is shipment damage. A electronics distribution company ships its product by truck and determines that it can meet its profit expectations if, on average, the number of damaged items per truckload is fewer than 12. A random sample of 12 departing truckloads is selected at the delivery point and the average number of damaged items per truckload is calculated to be 11.3 with a calculated sample of variance of 0.49. Select a 95% confidence interval for the true mean of damaged items. a) O (10.86, 11.74) b) O (11.56, 12.44) c) O (-0.4446, 0.4446) d) O (10.69, 11.91) e) O [48.92, -29.36] f) O None of the above
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