Answer the question Yes or No. Sam computed a 90% confidence interval for from a specific random sample of size n. He claims that at the 90% confident level, his confidence interval does not contain . Is this claim correct?

Answer
a. No
b. Yes

b. yes

a confidence interval has the meaning that a % likelihood exists the population mean is within the interval

It would help if you proofread your questions before you posted them.

Does not contain what?

I should follow my own advice.

b. Yes

Assume that is known to be $1.80 per 100 pounds.

Does not contain what?