According to a large online retailer, the proportion of customers making a purchase during the month of July was satisfied with the
online ordering process 88% of the time. They have reason to believe
the proportion of customers making a purchase during the month of
December who is satisfied with the online ordering process is lower
than 88%. What is the minimum sample size required to meet the
requirements for this test? Round to the whole number.

(x+3)(x+7)

step-by-step explanation:

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3

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%