Example 1.10 introduced the accompanying observations on bond strength. 11.5 12.1 9.9 9.3 7.8 6.2 6.6 7.0
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Example 1.10 introduced the accompanying observations on bond strength.
11.5 12.1 9.9 9.3 7.8 6.2 6.6 7.0 13.4 17.1 9.3 5.6 5.7 5.4 5.2 5.1 4.9 10.7 15.2 8.5 4.2 4.0 3.9 3.8 3.6 3.4 20.6 25.5 13.8 12.6 13.1 8.9 8.2 10.7 14.2 7.6 5.2 5.5 5.1 5.0 5.2 4.8 4.1 3.8 3.7 3.6 3.6 3.6
a. Estimate true average bond strength in a way that conveys information about precision and reliability. [Hint:
xi 387.8 and x2 i 4247.08.]
b. Calculate a 95% CI for the proportion of all such bonds whose strength values would exceed 10.
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Related Book For 
Probability And Statistics For Engineering And The Sciences
ISBN: 9781111802325
7th Edition
Authors: Dave Ellis, Jay L Devore
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