Construct the 95 percent confidence interval for the, Ask an Expert

Statistics

Construct the 95 percent confidence interval for the difference between the two population means.

The U.S. Department of Transportation provides the number of miles that residents of the 75 largest metropolitan areas travel per day in a car. Suppose that for a simple random sample of 50 Buffalo residents the mean is 22.50 miles a day and the standard deviation is 8.40 miles a day, and for an independent simple random sample of 40 Boston residents the mean is 18.60 miles a day and the standard deviation is 7.4 miles a day.

a. What is the point estimate of the difference between the mean number of miles that Buffalo residents travel per day and the mean number of miles that Boston residents travel per day?
________

b. What is the 95 percent confidence interval for the difference between the two population means?
(m1,m2) ________

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9169550

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

1 approximately 20 of corporate workforce are not happy

1) Approximately 20% of corporate workforce are not happy with their immediate bosses. Suppose 10 workers working in corporates are randomly selected. a) What is the probability that everybody of them is happy with his i ...

If a study was done to measure the total brain volume of

If a study was done to measure the total brain volume of patients that had schizophrenia and also of patients that are normal. Table 1 has the total brain volume of the normal patients and table 2 has the total brain vol ...

Ryan braun has just tested positive for gorilla growth

Ryan Braun has just tested positive for Gorilla Growth hormone. You are his lawyer. Given the following information, do you think you could get him off? Explain your reasoning. P(positive test | drug use) = 0.99 P(positi ...

A clothing quality director determines the accuracy of nfl

A clothing quality director determines the accuracy of NFL Logos on t-shirts. 9% of the shirts made that day are defective. The shirts are sold in packages of 10. Find the probability that in one randomly selected packag ...

The acme insurance company has two types of customers

The ACME Insurance Company has two types of customers, careful and reckless. A careful customer has an accident during the year with probability 0.01. A reckless customer has an accident during the year with probability ...

David barnes and his fianceacutee valerie shah are visiting

David Barnes and his fiancée Valerie Shah are visiting Hawaii. There are 38 guests registered for orientation. It is announced that 20 randomly selected registered guests will receive a free lesson of the Tahitian dance. ...

If the lengths of male skis and female skis are used to

If the lengths of male skis and female skis are used to construct a? 95% confidence interval for the difference between the two population? means, the result is 14.32cm

How does a firm navigate strategic management in the

How does a firm navigate strategic management in the context of an international environment? What complications does an international environment provide? What are the benefits of operating in an international environme ...

Ganad and equity risk premiumsnbspmarianbspgonzalez ganados

Ganad and Equity Risk Premiums. Maria? Gonzalez, Ganado's Chief Financial? Officer, estimates the? risk-free rate to be 3.70 %, the? company's credit risk premium is 4.00%, the domestic beta is estimated at 0.93?, the i ...

Breeding records reveal that 1 out of every 8 puppies of a

Breeding records reveal that 1 out of every 8 puppies of a certain Welsh Corgi female are runts. Since these puppies can't be sold for full price, we wish to examine the frequency with which this condition is likely to o ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert