For some value of z, the value of the cumulative standardized normal distribution is 0.8340. the value of z is

For some value of z, the value of the cumulative standardized normal distribution is 0.8340. the value of z is

We are required to find the value of z corresponding to probability 0.8340.

i.e.,

We can find the value of z using the standard normal table.

Using the standard normal table, we have:

Therefore, for the value of z = 0.97, cumulative standardized normal distribution is 0.8340

Attached here standard normal table for your reference.

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%