The average production cost for major movies is 58 million dollars and the standard deviation is 20 million dollars. Assume the production cost distribution is normal. Suppose that 41 randomly selected major movies are researched. Answer the following questions. Give your answers in millions of dollars, not dollars. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N( b. What is the distribution of x? ~ N( c. For a single randomly selected movie, find the probability that this movie's production cost is between 54 and 59 million dollars.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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The average production cost for major movies is 58 million dollars and the standard deviation is 20 million
dollars. Assume the production cost distribution is normal. Suppose that 41 randomly selected major
movies are researched. Answer the following questions. Give your answers in millions of dollars, not
dollars. Round all answers to 4 decimal places where possible.
a. What is the distribution of X? X - NO
b. What is the distribution of x? x NO
c. For a single randomly selected movie, find the probability that this movie's production cost is
between 54 and 59 million dollars.
d. For the group of 41 movies, find the probability that the average production cost is between 54 and
59 million dollars.
e. For part d), is the assumption of normal necessary? No Yes
Transcribed Image Text:The average production cost for major movies is 58 million dollars and the standard deviation is 20 million dollars. Assume the production cost distribution is normal. Suppose that 41 randomly selected major movies are researched. Answer the following questions. Give your answers in millions of dollars, not dollars. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - NO b. What is the distribution of x? x NO c. For a single randomly selected movie, find the probability that this movie's production cost is between 54 and 59 million dollars. d. For the group of 41 movies, find the probability that the average production cost is between 54 and 59 million dollars. e. For part d), is the assumption of normal necessary? No Yes
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I need help with the last few questions.

The average production cost for major movies is 58 million dollars and the standard deviation is 20 million
dollars. Assume the production cost distribution is normal. Suppose that 41 randomly selected major
movies are researched. Answer the following questions. Give your answers in millions of dollars, not
dollars. Round all answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N(58
b. What is the distribution of x? ~ N( 58
3.1235
c. For a single randomly selected movie, find the probability that this movie's production cost is
between 54 and 59 million dollars. 0.5254
20
d. For the group of 41 movies, find the probability that the average production cost is between 54 and
59 million dollars.
e. For part d), is the assumption of normal necessary? No Yes
Transcribed Image Text:The average production cost for major movies is 58 million dollars and the standard deviation is 20 million dollars. Assume the production cost distribution is normal. Suppose that 41 randomly selected major movies are researched. Answer the following questions. Give your answers in millions of dollars, not dollars. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(58 b. What is the distribution of x? ~ N( 58 3.1235 c. For a single randomly selected movie, find the probability that this movie's production cost is between 54 and 59 million dollars. 0.5254 20 d. For the group of 41 movies, find the probability that the average production cost is between 54 and 59 million dollars. e. For part d), is the assumption of normal necessary? No Yes
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