Atelevision station claims that the amount of advertising per hour of broadcast time has an average of 14 minutes and a standard deviation equal to 2.4 minutes. you watch the station for 1 hour, at a randomly selected time, and carefully observe that the amount of advertising time is equal to 8 minutes. calculate the z-score for this amount of advertising time.

 -2.5

Step-by-step explanation:

Given : A television station claims that the amount of advertising per hour of broadcast time has an average of 14 minutes and a standard deviation equal to 2.4 minutes.

i.e.

Let x be the random variable that represents the amount of advertising per hour.

The formula to find the z-score :-

For x= 8 , we have

Hence, the z-score for this amount of advertising time = -2.5

what's that

ou would have 12 of each