An experiment involves selecting a random sample of 256 middle managers for study. one item of interest is their annual income. the sample mean is computed to be $35,420, and the sample standard deviation is $2,050. what is the sample standard error of the mean?

The solution would be like this for this specific problem:

Given:

N = 256

Sample Mean = $35,420

Standard Deviation = $2,050

Find:

Standard Error of Mean = ?

The formula for the standard error of the mean is:

Om = o / sqrt(N)

Om = the standard deviation of the sampling distribution of the mean

where o = standard deviation of the sampling distribution of a statistic

N = sample size

So substituting the formula with the given:

Om = $2,050 / sqrt(256)

Om = $2,050 / 16

= $128.125

Therefore, the sample standard error of the mean is $128.125.

this answer is !

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation: