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

question 96

True/False

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:
-True or False: Referring to Scenario 9-1, the manager can conclude that there is sufficient
evidence to show that the mean number of defective bulbs per case is greater than 20 during the
morning shift with no more than a 5% probability of incorrectly rejecting the true null hypothesis.

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Definitions:

Fertilizer

A chemical or natural substance added to soil to increase its fertility and enhance plant growth.

Marginal Cost

The price of generating an extra unit of a good or service.

Gallons

A unit of volume for liquid measure equal to four quarts, used in both the US customary and British imperial systems.

Cereal

Grain-based food typically eaten as breakfast, made from processed grains and often fortified with vitamins and minerals.