With reference to the aluminum alloy strength data on page 29 , obtain two-sided \(95 \%\) tolerance limits on the proportion \(P=0.90\) of the population of strengths.

Data From Page 29

  

Transcribed Image Text:

EXAMPLE 7 A density histogram has total area | Compressive strength was measured on 58 specimens of a new aluminum alloy un- dergoing development as a material for the next generation of aircraft. 68.3 68.4 68.6 68.8 68.9 69.0 69.1 66.4 67.7 68.0 68.0 69.2 69.3 69.3 70.0 70.1 70.2 71.0 71.1 71.2 71.9 72.1 72.2 74.2 74.5 75.3 69.5 69.5 69.6 69.7 69.8 69.8 69.9 70.0 70.3 70.3 70.4 70.5 70.6 70.6 70.8 70.9 71.3 71.3 71.5 71.6 71.6 72.3 72.4 72.6 72.7 71.7 71.8 71.8 72.9 73.1 73.3 73.5