A Restaurant That Bills Its House Account Monthly Is Concerned $\mu$

question 82

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 null hypothesis is \(\mu\) \(\le\) 200. The alternate hypothesis is \(\mu\) \(\le\) 200.
• B) The null hypothesis is \(\mu\) \(\le\) 200. The alternate hypothesis is \(\mu\) > 200.
• C) The null hypothesis is \(\mu\) = 200. The alternate hypothesis is \(\mu\) \(\neq\) 200.
• D) The null hypothesis is \(\mu\) > 200. The alternate hypothesis is \(\mu\) \(\le\) 200
• E) The null hypothesis is \(\mu\) \(\le\) 220. The alternate hypothesis is \(\mu\) > 220.

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