Question
In: Statistics and Probability
The average production cost for major movies is 58 million dollars and the standard deviation is...
The average production cost for major movies is 58 million dollars and the standard deviation is 21 million dollars. Assume the production cost distribution is normal. Suppose that 7 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.
What is the distribution of X? X ~ N ()
What is the distribution of ¯x? ¯x ~ N ()
For a single randomly selected movie, find the probability that this movie's production cost is between 52 and 55 million dollars.
For the group of 7 movies, find the probability that the average production cost is between 52 and 55 million dollars.
Solutions
Expert Solution
the probability that the average production cost is between 52 and 55 million dollars.
orchestra answered 2 years agoRelated Solutions
The average production cost for major movies is 61 million dollars and the standard deviation is...
The average production cost for major movies is 61 million
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What is the distribution of X?X ~ N(,)
What is the distribution of ¯x? ¯x ~ N(,)
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Round all answers to 4 decimal places where possible.
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The average production cost for major movies is 59 million dollars and the standard deviation is...
The average production cost for major movies is 59 million
dollars and the standard deviation is 18 million dollars. Assume
the production cost distribution is normal. Suppose that 40
randomly selected major movies are researched. Answer the following
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possible.
What is the distribution of XX? XX ~ N(_____,_____)
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The average production cost for major movies is 69 million dollars and the standard deviation is...
The average production cost for major movies is 69 million
dollars and the standard deviation is 18 million dollars. Assume
the production cost distribution is normal. Suppose that 8 randomly
selected major movies are researched. Answer the following
questions. Round all answers to 4 decimal places where
possible.
What is the distribution of X X ? X X ~ N(Correct,Correct)
What is the distribution of ¯ x x ¯ ? ¯ x x ¯ ~ N(,)
For a single randomly...
The average production cost for major movies is 65 million dollars and the standard deviation is...
The average production cost for major movies is 65 million
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the production cost distribution is normal. Suppose that 46
randomly selected major movies are researched. Answer the following
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Round all answers to 4 decimal places where possible.
What is the distribution of X?X ~
N(_______________,______________)
What is the distribution of ¯x ? ¯x ~
N(_____________,______________)
For a single randomly selected...
1. The average production cost for major movies is 57 million dollars and the standard deviation...
1. The average production cost for major movies is 57 million
dollars and the standard deviation is 22 million dollars. Assume
the production cost distribution is normal. Suppose that 46
randomly selected major movies are researched. Answer the following
questions. Round all answers to 4 decimal places where
possible.
What is the distribution of X? X~ N( , )
What is the distribution of x¯? x¯ ~ N( , )
For a single randomly selected movie, find the probability that...
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The cost of 55 gallons of ice cream has a standard deviation of
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What is the probability that the sample mean would be greater
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Average tuition is $25,000 with a standard deviation of $2,000 if the cost is a mound...
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A normal population has a mean of 58 and a standard deviation of 13. You select...
A normal population has a mean of 58 and a standard deviation of
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Round to 4 decimal places.
a.
34% of the time, the sample average will be less than what
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Value
b.
34% of the time, the value of a randomly selected observation
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