In September, Shalee had some money in her bank account. In October she earned $48.24 and put it in her account. In November she
1 answer:
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Answer:
Mean 24, standard error 0.8
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation
, the sample means with size n of at least 30 can be approximated to a normal distribution with mean
and standard deviation, also called standard error
In this problem, we have that:
What are the mean and the standard error of the sample mean?
By the Central Limit Theorem, mean 24 and standard error
Number of students on the bus = 54
Students who will go to lunch first are = of 54
=
Hence, 36 students will go first for lunch.
