Confidence Interval

Hi all,

I have a question for you that I hope one of you can answer:

You sample 29 apples from your farm's harvest of 291 apples. The mean weight of the sample is 9.724 grams with 9.110 standard deviation. What is the probability that the mean weight of all 291 apples is below 30 grams?

Please let me know how you got to the answer as well!

Thank you,


Omega Contributor
This seems like homework. How do you think you may approach this question? What have you covered in class. Hint how do standard deviations come into play with the standard normal distribution?