Example 1.10 introduced the accompanying observations on
Chapter 7, Problem 7.47(choose chapter or problem)
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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