A city government asks 500 randomly selected people whether or not they are employed. The population percentage of employment is 0.60. Findthe probability thatexactly 300of these people are employed?

• 0.5170
• 0.6
• 0.0364
• 0.9636

In a test of hypothesesHo:= 50 vs.Ha:< 50, a sample of size 64 produced the test statisticz=1.321. The p-value (the observed significance) of the test is about

• 0.05
• 0.07
• 0.09
• 0.81
• -0.09