The office of student services at a large western state university maintains information on the study habits of its full-time students. their studies indicate that the mean amount of time undergraduate students study per week is 20 hours. the hours studied follows the normal distribution with a population standard deviation of six hours. suppose we select a random sample of 144 current students. what is the standard error of the mean

The standard error of the mean = 0.5

Step-by-step explanation:

Given : Sample size : n =  144

Standard deviation :

The formula to find the standard error of the mean is given by :-

i.e.

Hence, the standard error of the mean =0.5

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation: