The average production cost for major movies is 58 million dollars and the standard deviation is 18 million dollars. Assume the production cost distribution is normal. Suppose that 37 randomly selected major movies are researched. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N b. What is the distribution of ? ī - N( c. For a single randomly selected movie, find the probability that this movie's production cost is between 53 and 56 million dollars.

The average production cost for major movies is 58 million dollars and the standard deviation is 18 million dollars. Assume the production cost distribution is normal. Suppose that 37 randomly selected major movies are researched. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N b. What is the distribution of ? ī - N( c. For a single randomly selected movie, find the probability that this movie's production cost is between 53 and 56 million dollars.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

The average production cost for major movies is 58 million dollars and the standard deviation is 18 million
dollars. Assume the production cost distribution is normal. Suppose that 37 randomly selected major
movies are researched. Answer the following questions. Round all answers to 4 decimal places where
possible.
a. What is the distribution of X? X - N(
b. What is the distribution of T? T - N(
c. For a single randomly selected movie, find the probability that this movie's production cost is
between 53 and 56 million dollars.
d. For the group of 37 movies, find the probability that the average production cost is between 53 and
56 million dollars.
e. For part d), is the assumption of normal necessary? O NoO Yes

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