Asample of 230 observations is selected from a normal population for which the population standard deviation is known to be 22. the sample mean is 17. a. determine the standard error of the mean.

49.04

Step-by-step explanation:

Given : Sample size :

Standard deviation :

We know that the standard error of the mean is given by :-

Then , the standard error of the mean for the given situation will be :-

Hence, the standard error of the mean = 49.04

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.

the answer is d

step-by-step explanation:

you can also use mathway to get you answer + steps