The heights in inches of males in the united states are believed to be approximately normally distributed with mean u the mean height of a random sample of 25 american adult males is found to be x=69.72 and the standard deviation s=4.15 what is the standard error of x

Standard error = 0.83

Step-by-step explanation:

Given that the heights in inches of males in the united states are believed to be approximately normally distributed with mean u

Sample mean for 25 adults randomly taken =

inches

Std deviation of sample s = inches

Since X  the height of males is Normal we find that the sample mean also will follow a normal distribution.

By central limit theorem, mean of x would be= sample mean= 69.72

Std error =

Standard error of the mean = std dev/square root of sample size.

Here only sample std deviation is known

So we used it

Standard error = 0.83

Step-by-step explanation:

consider 61°=m angle 8

angle 1=angle 8 corresponding angle

angle 1=61°

angle 2+angle 1=180°angles in linear pair

180-61

angle 2=119°

angle 3=angle 8 alternate angle

angle 3=61°

angle 4=angle 2 opposite angles

angle 4=119°

angle 5=angle 4 alternate angles

angle 5=119°

angle 6=angle 8 opposite angles

angle 6=61°

angle 7=angle 5 opposite angles

angle 7=119°