Answer:
Mean = 41
Standard error = 2
Step-by-step explanation:
given that the range of values for the sample mean that fall within 1 standard error of the mean in a sampling distribution is M = 39 to M = 43.
This means that Mean ranges from 39 to 43 the lowest value is 39 and highest value is 43.
Since mean falls within 1 std error of the mean we can say
that mean= average of 39 and 43 = 41
Std error = Higher mean - mean= mean - lower mean= 2
So we find that
Mean = 41
Standard error = 2