650-Q6

Use the table of standard normal probabilities (z table) to answer the following questions. Provide table or Excel steps to calculate.

a.What is P(z 1.67)?

b. What is P(-2.00 < z < 1.00)?

c. What is P(0.65< z < 1.45)?

d. What z-value leaves 70 % of the normal distribution to its right?

e. What z-value, and its negative, leaves 10 % of the normal distribution in each tail (a total of 20% of the distribution in both tails combined)?