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The manufacturing company as well manufactures electric insulators. If insulators break when in use, a short circuit is likely to take place. To test the strength of insulators, destructive testing in high powered labs iscarried out to find out how much force is needed to break the insulators. Force is measured by observing how many pounds should be applied to insulator before it breaks. The strengths of 30 insulators are as follows:

1870	1728	1656	1610	1634	1784
1522	1696	1592	1662	1866	1764
1734	1662	1734	1774	1550	1756
1762	1866	1820	1744	1788	1688
1810	1752	1680	1810	1652	1736

a. Develop a frequency distribution and percentage distribution.

b. Develop histogram and percentage polygon.

c. Plot cumulative percentage polygon.

d. What can you conclude about strength of insulators if the company needs a force measurement of at least 1500 pounds before breaking.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M918205

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