A test of the breaking strength of six ropes manufactured by a company showed a mean breaking

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A test of the breaking strength of six ropes manufactured by a company showed a mean breaking strength of 7225 lb and a standard deviation of 120 lb. However, the manufacturer claimed a mean breaking strength of 7500 lb.
(a) Can we support the manufacturer’s claim at a level of significance of 0.10?
(b) Compute the p-value. What assumptions did you make for this problem?
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Mathematical Statistics With Applications In R

ISBN: 9780124171138

2nd Edition

Authors: Chris P. Tsokos, K.M. Ramachandran

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