Claim: The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample of 154 adult males, the pulse rates have a standard deviation of 11.5 bpm. Complete parts (a) and (b) below NEED THIS ANSWER NOW 100 PTS

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88