Questions: If the sample size is 36 and the population standard deviation is 12 , then the standard deviation of the sampling distribution for the mean is 2 .
True
False
Transcript text: If the sample size is 36 and the population standard deviation is 12 , then the standard deviation of the sampling distribution for the mean is 2 .
True
False
Solution
Solution Steps
Step 1: Identify the given values
The sample size \( n = 36 \) and the population standard deviation \( \sigma = 12 \).
Step 2: Recall the formula for the standard deviation of the sampling distribution of the mean
The standard deviation of the sampling distribution of the mean, also known as the standard error, is given by:
\[
\text{Standard Error} = \frac{\sigma}{\sqrt{n}}
\]
Step 3: Calculate the standard error
Substitute the given values into the formula:
\[
\text{Standard Error} = \frac{12}{\sqrt{36}} = \frac{12}{6} = 2
\]
Step 4: Compare the calculated standard error with the given value
The calculated standard error is \( 2 \), which matches the given value. Therefore, the statement is True.