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

question 134

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. Given the following printout, what can you determine?

• A) The alternate hypothesis is \(\mu\) \(\le\) 200
• B) You should accept the null hypothesis at the 0.05 level of significance.
• C) There is less than a 1% chance of getting these results if the null hypothesis is true, so you have very strong evidence to suggest that the average bill is more than $200.
• D) There is less than a 1% chance of getting these results if the null hypothesis is true, so you have very strong evidence to suggest that the average bill is less than $200.
• E) The alternate hypothesis is \(\mu\) \(\le\) 200 and you should accept the null hypothesis at the 0.05 level of significance.