Answer:
Step-by-step explanation:
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Two children are throwing a baseball back and forth. The ball is 4 ft above the ground when it leaves one child’s hand with an u
1 answer:
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Answer:
The mean of the sampling distribution of p is 0.25 and the standard deviation is 0.0685.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean and standard deviation
25% of the approximately 1000 issues reported per month that require more than one call.
This means that
What are the mean and standard deviation of the sampling distribution of p?
Sample of 40 means that .
By the Central Limit Theorem,
The mean is
The standard deviation is
The mean of the sampling distribution of p is 0.25 and the standard deviation is 0.0685.