Use the following information to answer the question. The mean age of lead actors from the top ten grossing movies of 2007 was 36.4 years with a standard deviation of 9.87 years. Assume the distribution of the actors ages is approximately unimodal and symmetric.
-In 2007, popular actor and singer Justin Timberlake was 26-years-old. What is Justin Timberlake's age in 2007 if it is standardized? Would it be unusual for a 26-year-old actor to be in a Top-grossing film of 2007? Assume the Empirical Rule applies and round to the nearest hundredth.
A) $ z=-1.05 $; It would not be unusual.
B) $ z=1.05 $; It would be unusual.
C) $ z=1.05 $; It would not be unusual.
D) $ z=-1.05 $; It would be unusual.

Question

Use the following information to answer the question. The mean age of lead actors from the top ten grossing movies of 2007 was 36.4 years with a standard deviation of 9.87 years. Assume the distribution of the actors ages is approximately unimodal and symmetric.
-In 2007, popular actor and singer Justin Timberlake was 26-years-old. What is Justin Timberlake's age in 2007 if it is standardized? Would it be unusual for a 26-year-old actor to be in a Top-grossing film of 2007? Assume the Empirical Rule applies and round to the nearest hundredth. 
A) $ z=-1.05 $; It would not be unusual.
B) $ z=1.05 $; It would be unusual.
C) $ z=1.05 $; It would not be unusual.
D) $ z=-1.05 $; It would be unusual.

Quizplus · Accepted Answer

Justin Timberlake's age is 1.05 standard deviations below the mean. The Empirical Rule states that 68% of the data falls within 1 standard deviation of the mean, so it would not be unusual for a 26-year-old actor to be in a Top-grossing film of 2007.

Use the Following Information to Answer the Question z=−1.05 z=-1.05 z=−1.05

Use the Following Information to Answer the Question $z=-1.05$