A radio station claims that the amount of advertising per hour of broadcast time has an average of 15 minutes and a standard deviation equal to 2.8 minutes. You listen to the radio station for 1 hour, at a randomly selected time, and carefully observe that the amount of advertising time is equal to 14 minutes. Calculate the z-score for this amount of advertising time.
A radio station claims that the amount of advertising per hour of broadcast time has an average of 15 minutes and a standard deviation equal to 2.8 minutes. You listen to the radio station for 1 hour, at a randomly selected time, and carefully observe that the amount of advertising time is equal to 14 minutes. Calculate the z-score for this amount of advertising time.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 1AGP
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![A radio station claims that the amount of advertising per hour of broadcast time has an average of 15 minutes and a standard deviation equal to 2.8 minutes. You listen
to the radio station for 1 hour, at a randomly selected time, and carefully observe that the amount of advertising time is equal to 14 minutes. Calculate the z-score for
this amount of advertising time.
O A. z= 0.36
O B. z =0.75
O C. z= -0.75
O D. z= - 0.36](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8d7dd878-68eb-4c6b-9d67-0903dd8963d8%2Ff4ad8d1e-eb53-47a4-9ea4-e03358c7c9b6%2Fxksl1q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A radio station claims that the amount of advertising per hour of broadcast time has an average of 15 minutes and a standard deviation equal to 2.8 minutes. You listen
to the radio station for 1 hour, at a randomly selected time, and carefully observe that the amount of advertising time is equal to 14 minutes. Calculate the z-score for
this amount of advertising time.
O A. z= 0.36
O B. z =0.75
O C. z= -0.75
O D. z= - 0.36
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