Information from the american institute of insurance indicates the mean amount of life insurance per household in the united states is $165,000. this distribution follows the normal distribution with a standard deviation of $40,000. if we select a random sample of 50 households, what is the standard error of the mean

$5656.85

Step-by-step explanation:

The standard error of the mean measures the dispersion of sample means about the population mean .

It is also known as the standard deviation of its sampling distribution.

Formula : , where = population standard deviation.

n= sample size.

As per given , we have

sample size : n= 50

Then, the standard error of the mean will be :-

Hence, the standard error of the mean= $5656.85

5/12, or 5: 12

step-by-step explanation:

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94