Lisa lives in Atlanta. She is going to a baseball game with her two sisters and her parents. They have $100 to spend. After they
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Answer:
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x=3
y=-5
z=-4
Answer:
A. The sample size must be at least 30 (some texts say 50).
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation
, a large sample size, of at least 30, can be approximated to a normal distribution with mean
and standard deviation
.
So the correct answer is:
A. The sample size must be at least 30 (some texts say 50).