Amachine that is programmed to package 1.20 pounds of cereal is being tested for its accuracy in a sample of 36 cereal boxes, the sample mean filling weight is calculated as 1.22 pounds. the population standard deviation is known to be 0.06 pounds. find the 95% confidence interval for the mean.

Hence, the 95% confidence interval for the mean is (1.2004, 1.2396).

Step-by-step explanation:

Since we have given that

Mean = μ = 1.20 pounds

n= 36

We need to find the 95% confidence interval for the mean.

So, z = 1.96

So, confidence interval would be

Hence, the 95% confidence interval for the mean is (1.2004, 1.2396).

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64