A study of commuting times reports the travel times to work of a random sample of 30 employed adults in New York State. The mean is x¯¯¯ = 31.25 minutes and the sample standard deviation is s = 29.5 minutes. What is the standard error of the mean?

it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.

a.) list the factors of 40.

1/2/4/5/8/10/20/40

b.) list the factors of 40 that represent the number of cans that could be on each shelf.

5

c.) how many different arrangements of cans are possible?

just one because if you put more on one shelf you will go way over 40 and the cabinet will probably break.

d.) what are the possible arrangements of the cans?

put 5 cans on each self to reach 40 cans in total.

e.) which arrangement uses all the shelves?

5 because you can put 5 cans on each shelf, and since there are 8 shelfs you are equally going to get 40 cans.