The average production cost for major movies is 68 million dollars and the standard deviation is 21 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( 68 21 b. What is the distribution of ? N( 21 X, 41 c. For a single randomly selected movie, find the probability that this movie's production cost is between 64 and 68 million dollars. 0.0755 d. For the group of 41 movies, find the probability that the average production cost is between 64 and 68 million dollars. 0.3887 e. For part d), is the assumption of normal necessary? O No Yes o

The average production cost for major movies is 68 million dollars and the standard deviation is 21 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( 68 21 b. What is the distribution of ? N( 21 X, 41 c. For a single randomly selected movie, find the probability that this movie's production cost is between 64 and 68 million dollars. 0.0755 d. For the group of 41 movies, find the probability that the average production cost is between 64 and 68 million dollars. 0.3887 e. For part d), is the assumption of normal necessary? O No Yes o

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

10. The following dot plot shoes the test scores for 10 students on a unit exam. Which shape most accurately describes these data? A. Skewed left B. Skewed right C. Normal Distribution Test Resuits D. Constant + 50 60 70 80 100 Test Score LEGO xx+8 XXxx-
Please answer B, C, & D.
D Question 24 The weights of cats is Normally Distributed. The mean weight is 10 lbs with a standard deviation of 0.2 lbs. Draw the normal curve and fill in the cut scores and percentages. Then answer the questions below: Based on a sample of 600 cats, how many would you expect to weigh more than 10.4 lbs? Based on a sample of 600 cats, how many would you expect to weigh at least 9.8 lbs. but not more than 10.2 lbs? Based on a sample of 600 cats, how many would you expect to weigh more than 10 lbs?
Just do 2 and 3 please.
A software company is interested in improving customer satisfaction rate from the 60% currently claimed. The company sponsored a survey of 148 customers and found that 95 customers were satisfied. What is the test statistic z?
Use the following set of values for #10 - 13. Round answers to nearest hundredth, if necessary. .3, .6, 9, 1.3, .4, .6, 1.2, 1.4, 1.1, .2, .2 10. Find the mean, median, and mode(s) 11. Find the range 12. Find the interquartile range 13. Find the standard deviation
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 52.5 degrees. Low Temperature (o F) 40 - 44 45 - 49 50 - 54 55 - 59 60 – 64 D Frequency 2 9. ... The mean of the frequency distribution is degrees. (Round to the nearest tenth as needed.) Which of the following best describes the relationship between the computed mean and the actual mean? O A. The computed mean is close to the actual mean because the difference between the means is more than 5% of the actual mean. B. The computed mean is not close to the actual mean because the difference between the means is less than 5% of the actual mean. C. The computed mean is not close to the actual mean because the difference between the means is more than 5% of the actual mean. D. The computed mean is close to the actual mean because the difference between the means is less than 5% of the actual mean.
A sample of n = 10 scores has a mean of 20. A person with a score of 1 is replaced with a person who has a score of 31. Find the new mean. a.31 b.17 c.21 d.23