Help with a statistics q

Question

rational · Answer

attachment

anonymous · Answer

fire it !

rational · Answer

^^ attached

rational · Answer

mainly i need help in interpreting the quesiton - chocolates/chips/cookies... i feel the question is bit confusing.. :/

anonymous · Answer

i cant see the attachment!

rational · Answer

ive eliminated first option already as 0.93 is okay for standard error

rational · Answer

attachment

rational · Answer

attached again.. see if this opens correctly .. .

anonymous · Answer

yup

anonymous · Answer

sorry i dont have an idea how to solve this :(

phi · Answer

The standard error of the mean = sample std divided by sqr(n), where n is the # of observations in the sample see https://en.wikipedia.org/wiki/Standard_error_(statistics)#Standard_error_of_the_mean

rational · Answer

ahh yes, so this can be a real number... need not be a natural number

rational · Answer

also since standard error refers to deviation of means, il strike off optionB also ?

phi · Answer

if you take repeated samples of 22 cookies, and calculate the mean # of chips,
you should get a mean of (about) 14.77 chips.  The standard deviation of this mean will be 0.93 chips  (i.e. the standard error of the mean)

rational · Answer

that makes sense, thanks @phi :)

phi · Answer

It looks like the 4th choice is the correct answer.