Author Question: Given that z is a standard normal random variable, and that the area to the right of z is 0.9066, ... (Read 58 times)

TVarnum · **on:** Jun 24, 2018

Given that z is a standard normal random variable, and that the area to the right of z is 0.9066, then the value of z must be:
a. 1.32.
b. -1.32.
c. 0.66.
d. -0.66.

Question 2

A manufacturing company packages peanuts for Piedmont Airlines. The individual packages weigh 1.4 grams with a standard deviation of 0.6 grams. For a flight of 152 passengers receiving the peanuts, the probability that the average weight of the packages is less than 1.3 grams is:
a. 0.0202.
b. 0.2040.
c. 0.9798.
d. 0.4798.
e. 2.0500.