A manufacturing company produces electric insulators. If the insulators break wh

Question

A manufacturing company produces electric insulators. If the insulators break when in use, a short circuit is likely to occur. To test the strength of the insulators, destructive testing in high-powered labs is carried out to determine how much force is required to break the insulators. Force is measured by observing how many pounds must be applied to the insulator before it breaks. Data are collected from a sample of 30 insulators. The strengths are as follows. Complete parts a through c. a. Construct a frequency distribution. 1,900 but less than 2,000 2,000 but less than 2,100 2,100 but less than 2,200 2,200 but less than 2,300 2,300 but less than 2,400

Explanation / Answer

Strength Frequency 1900 but less than 2000 1 2000 but less than 2100 8 2100 but less than 2200 9 2200 but less than 2300 2 2300 but less than 2400 10 Total 30

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