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. What is the mean of the sampling distribution, and what is the standard error?

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

Step-by-step explanation:

If the lines m and n are parallel, then the 2 inside angles that make a "C" shape are co-interior angles. These are supplementary or add up to 180 degrees.

Therefore, for m and n to be parallel, then x and 2x must add up to 180 degrees.

Solve for x. First, combine like terms on the left side of the equation. Add x and 2x.

Solve for x by isolating the variable. It is being multiplied by 3. The inverse operation of multiplication is division. Divide both sides of the equation by 3.

The value of x that makes m parallel to n is 60.