Question: A manufacturer of fibre optic cables produce two types of cables type A and type B. They claim that the average strength of cable type

A manufacturer of fibre optic cables produce two types of cables type A and type B. They claim that the average strength of cable type A exceeds the average strength of cable type B by at least

12 kg. To test the claim 50 cables of each type were tested under the same conditions. Type A has an average strength of 86.7 kg with a standard deviation of 6.28 kg and type B has an average strength of 77.8 kg with a standard deviation of 5.61 kg. At a significance level of 5% test the manufacturer's claim.

A manufacturer of fibre optic cables produce two types of cables type A and type B. They claim that the average strength of cable type A exceeds the average strength of cable type B by at least

Multiple choices of answer

a. Type A exceeds the strength of type B

b. Type A will never exceed the strength of type B

c. Type B will never exceed the strength type A

d. Type A equal strength to type B

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Grveen Type A Caber m 50 24 867 kg 628 kg the B Cable ng 50 ... View full answer

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