2. 7 & 8 - (S 7.2) (Note: As you begin the calculation problems for chapter 7, y

Question

2. 7 & 8 - (S 7.2) (Note: As you begin the calculation problems for chapter 7, you should be using the following calculator functions as much as possible: normalcdf(z1,z2) normalcdf(x1,x2,x¯,?) invnorm(p) invnorm(p,x¯,?) If you do not know the difference between the commands, you are not ready to attempt this homework assignment.) Suppose the random variable Z follows a standard normal distribution. Calculate each of the following. Round your responses to at least 4 decimal places. a) P(?0.801.00)= Number

Explanation / Answer

Question:

To find:
P(0.80 < Z < 1.00):

Answer:

The calculator function:

normalcdf(0.80,1.00) gives the probability value between the 2 bounds :

z1 = 0.80 and z2 = 1.00 as: 0.0532

So,

Answer is:

0.0532

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