TABLE 9-1 Microsoft Excel Was Used on a Set of Data Involving

question 68

Multiple Choice

TABLE 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 Table 9-1, the parameter the manager is interested in is

• A) the mean number of defective light bulbs per case produced at the plant.
• B) the mean number of defective light bulbs per case among the 46 cases.
• C) the mean number of defective light bulbs per case produced during the morning shift.
• D) the proportion of cases with defective light bulbs produced at the plant.

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