User Account

All Pages

Problem regarding the fuel consumption

Assignment Help Basic Statistics
Reference no: EM131036282

A random sample of 16 mid-sized cars tested for fuel consumption gave a mean of 26.4 kilometers per litre with a standard deviation of 2.3 kilometers per litre.

A. Assuming that the kilometers per litre given by all mid-sized cars have a normal distribution, find a 99% confidence interval for the population mean μ.

B. Suppose the confidence interval obtained in (a) is too wide. How can the width of this interval be reduced? Describe all possible alternatives. Which alternative is the best and why?

Reference no: EM131036282

Questions Cloud

Mean weights of fish : Assume that the weight of fish for both lakesare normally distributed with equal population standard deviations. Test at =.01 significance level,if the mean weights of fish are different for these two lakes
How the quantity expansion of euro money would change : Discuss how the quantity expansion of euro money would change the value of euro, exchange rate (depreciation or appreciation) against other currencies, and exports and imports in the EU. How would this contribute to EU's current account balance a..
Determining the assumptions for two samples : When a researcher has two samples with two means, one of the assumptions for two samples is independence of between the two samples. What does this mean? What happens if the independence assumption is violated?
Determine the downward acceleration a of the frame : Determine the downward acceleration α of the frame at which the contact at B will separate and break the electrical circuit.
Problem regarding the fuel consumption : A random sample of 16 mid-sized cars tested for fuel consumption gave a mean of 26.4 kilometers per litre with a standard deviation of 2.3 kilometers per litre.
How is soa different : How is SOA different? Event driven Agility and Origins of events. Governance: Agility and SOA Enterprise Transformation.
Neglect the small friction force exerted : If the car and trailer reach a velocity of 60km/h on a level road in a distance of from rest with constant acceleration, compute the vertical component of the force supported by the hitch at A. Neglect the small friction force exerted on the relat..
Write a dialogue on johathan swift : WRITE A DIALOGUE BETWEEN JOHATHAN SWIFT AND A MODERN COMEDIAN OF YOUR CHOICE ON COMEDY AND SOCIETY AND HOW THEY IMPACT AND INFLUENCE ONE ANOTHER. (THINK OF SWIFT HAVING A BEER WITH JOHN STEWART OR THE LATE GREAT RICHARD PRIOR.)
Calculate the magnitude of the total force supported : Calculate the magnitude of the total force supported by the connection at A if the truck starts from rest with an acceleration of 5 m/s2

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability that there is indeed oil in the ground

An oil executive has determined that the probability that this oil field contains oil is 0.6. Before starting the drilling she decides to order a seismological test to see if there is oil in the ground.

  Bargains on the menu-and a side of jitters

Boston Globe article "bargains on the menu-and a Side of Jitters" reported concerns

  Academic degrees and gender

Academic degrees and gender. Here are the projected numbers (in thousands) of earned degrees in the United States in the 2010-2011 academic year, classi?ed by level and by the sex of the degree recipient:28

  Question based on multiple regression

Multiple choice question based on multiple regression - The coefficient of determination for this model is

  Problem regarding the full-amplitude output

An op amp having a slew rate of 10 V/μs is to be used in the unity-gain follower configuration, with input pulses that rise from 0 to 2 V. What is the shortest pulse that can be used while ensuring full-amplitude output? For such a pulse, describe..

  Create confidence interval for corresponding true mean

In an air-pollution study performed at an experiment station, the following amount of suspended benzene-soluble. Assuming that the population sampled is normal, construct 95% confidence interval for the corresponding true mean.

  Statistics-savings rates in us

According to the Bureau of Economic Analysis, the savings rate of American households, defined as a percentage of the disposable personal income, was 4.20% in 2009.

  Probability first defective found in fifth component

Assume that the probability of a defective computer component is 0.2. Find the probability that the first defecr is found in the fifth component tested.

  The probability that sammy makes his own lunch is 075 the

the probability that sammy makes his own lunch is 0.75. the probability increases to 0.8 if he made his own lunch the

  Someone suggests that the lifetime t in days of a certain

someone suggests that the lifetime t in days of a certain component can be modeled with the weibull distribution with

  An online computer retailer sells both desktop and laptop

an online computer retailer sells both desktop and laptop computers. assume that 8 of the computers that the online

  Research division employing dependent or independent samples

One group is given the new drug and the other group is given the standard drug. Data are recorded on the effects of each drug. Is the research division using dependent or independent samples? Why?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd