During the winter semester of 2021, the majority of classes were held online as opposed to in person. A professor decided to pre-record all of his lectures and make them all available so that students could access any of the videos at any time during the semester. Suppose the lengths of these pre-recorded lecture videos follow a normal distribution with a mean length of 57.28 minutes and a standard deviation of 8.887 minutes. Please use this information to answer the following question. a. Suppose the z-score (standardized score) of a lecture video's length is given as 1.18. Which of the following statements is a correct interpretation of the meaning of this value? A. The length of this video is 1.18 standard deviations longer than the average length B. The length of this video is 1.18 minutes longer than the average length C. The length of this video is 1.18 times longer than the average length D. There is not enough information provided to interpret this value

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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During the winter semester of 2021, the majority of classes were held online as opposed to in person. A professor decided to pre-record all of his lectures and make them all available so that students could access any of the videos at any time during the semester. Suppose the lengths of these pre-recorded lecture videos follow a normal distribution with a mean length of 57.28 minutes and a standard deviation of 8.887 minutes. Please use this information to answer the following question.

aSuppose the z-score (standardized score) of a lecture video's length is given as 1.18. Which of the following statements is a correct interpretation of the meaning of this value?

A. The length of this video is 1.18 standard deviations longer than the average length
B. The length of this video is 1.18 minutes longer than the average length
C. The length of this video is 1.18 times longer than the average length
D. There is not enough information provided to interpret this value

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