Find the estimated standard error for the sample mean for each of the following samples.

a. n = 4 with ss = 48

b. n = 6 with ss = 270

c. n= 12 with ss = 132

a) 2

b) 3

c) 1

Step-by-step explanation:

The standard error (SE) is given as:

SE = s ÷ √n

here,

s = √[SS ÷ (n - 1)]

Therefore,

We get,

SE =

Therefore,

For a)  n = 4 with SS = 48

SE =

or

SE = √4

or

SE = 2

For b)  n = 6 with SS = 270

SE =

or

SE = √9

or

SE = 3

For c)  n = 12 with SS = 132

SE =

or

SE = √1

or

SE = 1

Step-by-step explanation:

Multiply the fraction by the conjugate and solve (would explain more but you're on a time crunch)