9. (6) Construct a confidence interval for Ma, the mean of the differences d for the population of paired data. Assume that the population of paired differences is
normally distributed.
Ten different families are tested for the number of gallons of water a day they use
before and after viewing a conservation video. Construct a 90% confidence interval
for the mean of the differences.
Before 33 33 38 33 35 35 40 40 40 31
After 34 28 25 28 35 33 31 28 35 33

required rate of return = 0.166 = 16.6%

step-by-step explanation:

under the capital asset pricing model (capm), the required or expected rate of return for a particular security or asset is given using the formula:

required rate of return = risk-free rate + beta*(market risk premium)

we are given that;

risk-free rate = 4% = 0.04

beta = 1.4

market risk premium = 9% = 0.09

we simply plug these values into the above formula;

required rate of return = 0.04 + 1.4*(0.09)

required rate of return = 0.04 + 0.126

required rate of return = 0.166 = 16.6%

4.5%

step-by-step explanation:

-3.5 is the distance.

i've had this question so choose the one in the absolute value sign.