As the size of the sample increases, what happens to the shape of the sampling means?
Question
As the size of the sample increases, what happens to the shape of the sampling means?
Solution
As the size of the sample increases, the shape of the distribution of the sample means becomes more like a normal distribution. This is known as the Central Limit Theorem.
Here are the steps to understand this:
- Start with any population with a known mean and standard deviation.
- Draw random samples from this population and calculate the mean of each sample.
- As the sample size increases, the distribution of these sample means will approach a normal distribution (a bell-shaped curve), regardless of the shape of the original population.
- The mean of this distribution of sample means will be equal to the population mean.
- The standard deviation of this distribution (known as the standard error) gets smaller as the sample size increases.
So, in summary, as the sample size increases, the shape of the sampling means becomes more normally distributed and the standard error decreases.
Similar Questions
As the size of the sample increases, what happens to the shape of the sampling means?Select one:A. cannot be predicted in advanceB. approaches a normal distributionC. positively skewedD. negatively skewed
What generally happens to the sampling error as the sample size is decreased?
Standard Deviation of Sample MeansFill in the blank.Suppose the population standard deviation is given to you. Now, if you increase your sample size, then the sample mean distribution plot will ____Become widerBecome narrowerRemain the sameChange unpredictably
As the sample size increases, the sampling error ..... while the nonsampling error ..............Question 15Answera.decreases, remains unchangedb.remains unchanged, decreasesc.remains unchanged, decreasesd.increases, decreases
According to the Central Limit Theorem, the sampling distribution of the sample mean becomes approximately normally distributed asthe standard error increasesthe population variance decreasesthe size of the population increasesthe number of samples drawn increasesthe size of the sample increases
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