Question

select the correct answer. a population has a standard deviation of 11. what is the approximate standard error of the mean for a sample size of 150? a. 1.80 b. 0.07 c. 0.90 d. 2.70

Explanation:

Step1: Recall the formula for standard error of the mean

The formula for the standard error of the mean ($SE$) is $SE=\frac{\sigma}{\sqrt{n}}$, where $\sigma$ is the population standard - deviation and $n$ is the sample size.

Step2: Identify the values of $\sigma$ and $n$

Given that $\sigma = 11$ and $n = 150$.

Step3: Calculate the standard error

$SE=\frac{11}{\sqrt{150}}\approx\frac{11}{12.2474}\approx0.90$.

Answer:

C. 0.90