Random samples of 44 blended fuels are tested in a lab to ascertain the bio/total carbon ratio. if the true mean is .9590 with a standard deviation of 0.0080 within what interval will 98 percent of the sample means fall?

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?