Question

question 24 (4 points)
if a confidence interval for the mean weight of cereal boxes is (12.5 oz, 13.5 oz), what can we conclude?
the sample mean is 13 oz.
the average weight of all cereal boxes is 13 oz.
all cereal boxes weigh between 12.5 oz and 13.5 oz.
we are confident that the average weight of all cereal boxes is between 12.5 oz and 13.5 oz.
question 25 (4 points)
a company wants to ensure that their cereal boxes weigh at least 12 oz. they sample 50 boxes and find a mean weight of 12.1 oz with a 95% confidence interval of (11.9 oz, 12.3 oz). what can they conclude?
they need to sample more boxes.
the machinery is operating properly.
the machinery is not operating properly.
the average weight is below the required amount.

Explanation:

Answer:

(Question 24) We are confident that the average weight of all cereal boxes is between 12.5 oz and 13.5 oz.
(Question 25) The machinery is operating properly.