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SCENARIO 9-1
Microsoft Excel was used on a set of data involving the number of defective items found in a random sample of 46 cases of light bulbs produced during a morning shift at a plant.A manager wants to know if the mean number of defective bulbs per case is greater than 20 during the morning shift.She will make her decision using a test with a level of significance of 0.10.The following information was extracted from the Microsoft Excel output for the sample of 46 cases:
-Referring to Scenario 9-1,if these data were used to perform a two-tail test,the p-value would be 0.042.
Visual Acuity
The clarity or sharpness of vision, a measure of the eye's ability to distinguish shapes and details.
Snellen Chart
A chart used to measure visual acuity, commonly seen in eye doctors' offices, featuring rows of letters decreasing in size.
Letter Chart
A chart commonly used in eye examinations, featuring rows of letters in decreasing sizes to assess visual acuity.
Near Vision
The ability of the eye to see clearly at a close range, typically within a few feet.
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