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 dollars and the standard deviation is 18 million dollars. Assume the production cost distribution is normal. Suppose that 10 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( 65 Correct, 18 Correct) What is the distribution of ¯ x ? ¯ x ~ N( 65 Correct, 5.6921 Correct) For a single randomly selected movie, find the probability that this movie's production cost is between 62 and 65 million dollars. .2009 Incorrect For the group of 10 movies, find the probability that the average production cost is between 62 and 65 million dollars. Incorrect For part d), is the assumption of normal necessary? YesNoCorrect
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The average production cost for major movies is 65 million
dollars and the standard deviation is...
The average time to run the 5K fun run is 23 minutes and the standard deviation...
The average time to run the 5K fun run is 23 minutes and the standard deviation is 2.7 minutes. 44 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. What is the distribution of X ? X ~ N( , ) What is the distribution of ¯ x ? ¯ x ~ N( , ) What is the distribution of ∑ x ? ∑ x...
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On average, indoor cats live to 12 years old with a standard deviation of 2.7 years....
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On average, indoor cats live to 15 years old with a standard deviation of 2.3 years....
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On average, indoor cats live to 12 years old with a standard deviation of 2.6 years....
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CNNBC recently reported that the mean annual cost of auto insurance is 995 dollars. Assume the...
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The average score for games played in the NFL is 20.8 and the standard deviation is...
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On average, indoor cats live to 15 years old with a standard deviation of 2.6 years. Suppose that the distribution is normal. Let the age at death of a randomly selected indoor cat. Round answers to 4 decimal places where possible. a. What is the distribution of X?X-N b. Find the probability that an indoor cat dies when it is between 11.7 and 13.4 years old. c. The middle 20% of indoor cats' age of death lies between what two...
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