Exercises 6–8: chocolate chip claim
the nabisco company claims that there are at least 1,000 chocolate chips in every 18-ounce bag of their chips ahoy! cookies. an article in a local newspaper reported the efforts of a
group of students in their attempt to validate the nabisco claim. the article reported that the students randomly selected 42 bags of cookies from local grocery stores
and counted the number of chocolate chips in the cookies in each bag. the students found the sample mean was 1,261.6 chips, and the sample standard deviation was 117.6 chips.
the article stated that the students’ data supported the nabisco company claim.
6. using the students’ results, calculate the margin of error associated with the estimate of the mean number of chocolate chips in an 18-ounce bag of chips ahoy! chocolate chip cookies.
write a sentence interpreting the margin of error.