Use the Following Information to Answer Questions (1) - (5)

question 56

Multiple Choice

Use the following information to answer questions (1) - (5) . Feature movie lengths (in hours) were measured for all movies shown in the past year in the U.S. The mean length of all feature length movies shown was 1.80 hours with a standard deviation of 0.15 hours. Suppose the length of a random sample of 20 movies was recorded from all movies released this year. The mean length of the feature length movies was found to be 1.72 hours with a standard
deviation of 0.18 hours.
-What is the standard error for the estimated mean feature length movie time of the 20 randomly selected movies? Round to the nearest thousandth.

• A)0.356
• B)0.040
• C)0.055
• D)0.034

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