A Television Station Claims That the Amount of Advertising Per

Multiple Choice

A television station claims that the amount of advertising per hour of broadcast time has an average of 16minutes and a standard deviation equal to 1.4 minutes. You watch the station for 1 hour, at a randomlyselected time, and carefully observe that the amount of advertising time is equal to 8 minutes. Calculate thez-score for this amount of advertising time.

A) z = -5.71
B) z = 5.71
C) z = -0.41
D) z = 0.41