A Restaurant That Bills Its House Account Monthly Is Concerned

question 8

Multiple Choice

A restaurant that bills its house account monthly is concerned that the average monthly bill exceeds $200 per account. A random sample of twelve accounts is selected, resulting in a sample mean of $220 and a standard deviation of $12. The t-test is to be conducted at the 5% level of significance.

• A) The critical value of t is +1.796. The calculated value of t is +5.77.
• B) The critical value of t is -1.796. The calculated value of t is -5.77.
• C) The critical value of t is +2.201. The calculated value of t is +5.77.
• D) The critical value of t is +2.201. The calculated value of t is +1.40.
• E) The critical value of t is +2.201. The calculated value of t is -5.77.

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Lifestyle

The way in which a person or group lives, including patterns of social relations, consumption, entertainment, and dress.

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Scientists or practitioners who specialize in the study of aging and the health, well-being, and social issues affecting older adults.

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The average period that a person may expect to live.