Question: An electric company is creating new equipment that is sensitive to frequent lightning strikes. The company claims that lightning strikes 2 or less days per 100 days in a certain area. After 650 days of collected sample data, we would like to demonstrate that lightning strikes 2 or less days per 100 days. By doing so, we can give the OK to proceed with the manufacturing of the new equipment. Can we support the claim that lightning strikes 2 or less days per 100 days. Use a Z-test at alpha = 0.01 .

Sample days= 650 days

Total days of lightning strikes in 650 days = 11 days with lightning strikes.

Mean number of days with lightning strikes per 100 days = 1.692 days

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