Question: A random sample of 36 drivers used on average 749 gallons of gasoline per year. If the standard deviation of the population is 32 gallons,

A random sample of 36 drivers used on average 749 gallons of gasoline per year. If the standard deviation of the population is 32 gallons, find the 95% confidence interval of the mean for all drivers. If a driver said that he used 803 gallons per year, would you believe that?

Step by Step Solution

★★★★★

3.46 Rating (156 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

x 749 32 7385 7595 or 739 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (2 attachments)

1597_6062c74d21300_682223.pdf

180 KBs PDF File

1597_6062c74d21300_682223.docx

120 KBs Word File

Students Have Also Explored These Related Business Statistics Questions!

For a random sample of 36 data pairs, the sample mean of the differences was 0.8. The sample standard deviation of the differences was 2. At the 5% level of significance, test the claim that the...

A random sample of 36 observations has been drawn from a normal distribution with mean 50 and standard deviation 12. Find the probability that the sample mean is in the interval47

In light of a recent large corporation bankruptcy, auditors are becoming increasingly concerned about the possibility of fraud. Auditors might be helped in determining the chances of fraud if they...

Gasoline Use A random sample of 49 drivers used on average 745 gallons of gasoline per year. The standard deviation of the population is 32 gallons. (a) Find the 95% confidence interval of the mean...

Gasoline Use A random sample of 36 drivers used on average 751 gallons of gasoline per year. The standard deviation of the population is 33 gallons. EO Part: 0 / 2 Part 1 of 2 (a) Find the 90%...

Gasoline Use A random sample of 64 drivers used on average 751 gallons of gasoline per year. The standard deviation of the population is 31 gallons. Part: 0 / 2 Part 1 of 2 (a) Find the 90%...

Gasoline Use A random sample of 25 drivers used on average 757 gallons of gasoline per year. The standard deviation of the population is 33 gallons. Use a graphing calculator. Part: 0 / 2 Part 1 of 2...

A random sample of 64 drivers used on average 742 gallons of gasoline per year. The standard deviation of the population is 33 gallons. (a) Find the 99% confidence interval of the mean for all...

. A population is known to be normally distributed with a standard deviation of 2.8. (a) Compute the 95% confidence interval on the mean based on the following sample of nine: 8, 9, 10, 13, 14, 16,...

1. Retail price of fuel in Fiji is uniformly distributed between $2.00 and $3.50 per litre. a. Calculate the retail average price of fuel in Fiji. (1 mark) b. What is the probability that the price...

1. What is the problem in this scene? 2. What are the engineers options for solving the problem? 3. Does this scene show innovation and innovative behavior? If so, in what form? This film...

At December 31, 2014, Washington Products has cash of $21,000, receivables of $17,600, and inventory of $79,000. The companys equipment totals $185,000. Washington owes accounts payable of $25,000...

3.15 Inflation Rates (Example 4) Look at the two histograms, created from the data taken from data.worldbank.org, and decide whether you think the standard deviation of inflation rates in Australia...

In this chapter, what were some of the problems that Dr. Robinson ran into while trying to determine the demand for her surgical services?

Roughly 1 in 6 students enrolled in higher education took at least one online course last fall. Choose 5 enrolled students at random. Find the probability that a. All 5 took online courses b. None of...

Three cards are drawn from an ordinary deck without replacement. Find the probability of getting a. All black cards b. All spades c. All queens

A coin is tossed and a card is drawn from a deck. Find the probability of getting a. A head and a 6 b. A tail and a red card c. A head and a club

Q4 1 Point Divine is a company with no debt in the capital structure. Its overall cost of capital is 9%. The firm is considering a new capital structure with 50% debt. The interest rate on the debt...

Over and Under, Inc. manufactures weaving looms. Before the period began, the company prepared the following manufacturing overhead budget for an expected activity level of 15,000 direct labor hours...

V Espanol The Cadet is a popular model of sport utility vehicle, known for its relatively high resale value. The bivariate data given below were taken from a sample of sixteen Cadets, each bought new...