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.
Correct Answer:
Verified
Correct Answer:
Verified
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