19 subjects take part in a math exam, followed by an intervention and a post-test. from their pre-test/post-test difference scores, there was a mean difference of 13.19, with a standard deviation of 22.3. calculate the 95% confidence interval of the difference. round your final answer to two decimal places.

536

step-by-step explanation:

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

thats not a system of equations, that is a solution

in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

happy to