A sample of 250 observations is selected from a normal population with a population standard deviation of 25. The sample mean is 20. Determine the standard error of the mean. (Round your answer to 3 decimal places.)

The standard error of the mean is  

Step-by-step explanation:

From the question we are told that

    The sample size is  n  =  250

      The standard deviation is  

          The sample mean is  

The standard error of the mean is mathematically represented as

substituting values

where are the options?

step-by-step explanation:

whole number data type

step-by-step explanation:

as whole number type represents whole number

like 1, 2 ,3, 4

in other words the whole numbers are those numbers which cannot be written infraction.

since we can take days as a whole number i.e 1 day 2 day and we cannot write 1.2 day hence we will use whole number data type