BySolar, a manufacturer of solar power panels for domestic and commercial buildings, has two types of...
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BySolar, a manufacturer of solar power panels for domestic and commercial buildings, has two types of panel for sale and a new design at the pre-production stage. The company testing facility placed 20 panels of each type in a controlled environment, the 60 panels being randomly sited within the test area. Over the testing period the metered amount of electricity added to a collecting grid was recorded. One of the efficiency testing standards computed passing rates of 90%, 95%, 85% for the three panel types. Can the company claim that the panels are equally efficient? BySolar, a manufacturer of solar power panels for domestic and commercial buildings, has two types of panel for sale and a new design at the pre-production stage. The company testing facility placed 20 panels of each type in a controlled environment, the 60 panels being randomly sited within the test area. Over the testing period the metered amount of electricity added to a collecting grid was recorded. One of the efficiency testing standards computed passing rates of 90%, 95%, 85% for the three panel types. Can the company claim that the panels are equally efficient?
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