(select ONE from the options in the parenthesis )
Ann and Tori wanted to estimate the average weight of an Oreo cookie to determine if it was less than advertised (34 grams for 3 cookies). They selected a random sample of 36 cookies and found the weight of each cookie (in grams). The mean weight was ¯=11.3921 grams with a standard deviation of =0.0817grams.
A 90% confidence interval for the true mean weight of an Oreo cookie is found to be 11.369 to 11.4152 grams.
Interpret the confidence level.
If we were to select (many random samples / a random sample) of size 36 from the population of all (cookies / weights /Oreo cookies) and construct a 90% confidence interval using each (sample /cookie) , about (95% /90%) of the intervals would (contain the sample mean weight /capture the true mean weight) of an Oreo cookie.