2. You are thinking about buying a motel located on Interstate 64. Before you make up your mind, you want to estimate the average number of vehicles that go by the motel each day in the summer. Fortunately, the highway department has been counting vehicles on I-64 near the motel. A random sample of 36 summer days shows an average of 16000 cars per day with a standard deviation of 2400 cars. Find a 90% confidence interval for the mean number of cars per summer day going past the motel.
2. You are thinking about buying a motel located on Interstate 64. Before you make up your mind, you want to estimate the average number of vehicles that go by the motel each day in the summer. Fortunately, the highway department has been counting vehicles on I-64 near the motel. A random sample of 36 summer days shows an average of 16000 cars per day with a standard deviation of 2400 cars. Find a 90% confidence interval for the mean number of cars per summer day going past the motel.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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![2. You are thinking about buying a motel located on Interstate 64. Before you make up
your mind, you want to estimate the average number of vehicles that go by the motel
each day in the summer. Fortunately, the highway department has been counting
vehicles on I-64 near the motel. A random sample of 36 summer days shows an average
of 16000 cars per day with a standard deviation of 2400 cars. Find a 90% confidence
interval for the mean number of cars per summer day going past the motel.
3. A sociologist is studying marriage customs in a rural community in Denmark. A
random sample of 35 women who have been married was used to determine the age of
the woman at the time of her first marriage. The sample standard deviation was 2.3
years. How many women should be included in the sample to be 95% confident that the
sample mean of ages is within .25 year of the population mean?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdd4f5bf9-6440-44f7-9e1d-45990d3f15d6%2F667a0bd0-4949-48ba-b9bd-e68d8db4c962%2Fi5mry2f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. You are thinking about buying a motel located on Interstate 64. Before you make up
your mind, you want to estimate the average number of vehicles that go by the motel
each day in the summer. Fortunately, the highway department has been counting
vehicles on I-64 near the motel. A random sample of 36 summer days shows an average
of 16000 cars per day with a standard deviation of 2400 cars. Find a 90% confidence
interval for the mean number of cars per summer day going past the motel.
3. A sociologist is studying marriage customs in a rural community in Denmark. A
random sample of 35 women who have been married was used to determine the age of
the woman at the time of her first marriage. The sample standard deviation was 2.3
years. How many women should be included in the sample to be 95% confident that the
sample mean of ages is within .25 year of the population mean?
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