Examine data by creating the confidence interval of means

Assignment Help Basic Statistics
Reference no: EM13110642

Ledolter and hogg report that two different fabrics say x and y are compared on the martindate were tester which can compare two materials in sigle run, weights losses from seven runs are as follows:

x= 36 26 31 38 28 37 22
y= 39 27 35 42 31 39 21

Examine these data by creating the 90% confidence interval for difference of means. Define your assumption.

Reference no: EM13110642

Questions Cloud

How different skin pigmentation evolved in the human : The main principles of evolution are outline below. Using the principles of evolution as a guide, describe how antibacterial resistance happens OR describe how different skin pigmentation evolved in the human population.
Statistics for management : The pet-drug market is growing very rapidly. Before new pet drugs can be introduced into the market place, they must be approved by the U.S. Food and Drug Administration.
Discuss the lifecycle of one helminth : Discuss the lifecycle of one helminth and state which form of a worm is parasitic-larva or the egg and discuss why.
Drawbacks of traditional and authentic assessments : What are the benefits and drawbacks of traditional and authentic assessments in math and science?
Examine data by creating the confidence interval of means : martindate were tester which can compare two materials in sigle run, weights losses from seven runs. Examine these data by creating the 90% confidence interval for difference of means. Define your assumption.
How are protozoa living in the human bowel : How are protozoa living in the human bowel different from those that move into the urogenital membranes?
Create a communication policy : 2008 and 2009 were, to put it mildly, difficult years for the automotive industry. Both General Motors and Chrysler depended on unprecedented levels of government intervention to stay viable.
Distinction between null and alternate hypothesis : Explain the difference between the null hypothesis and the alternate hypothesis. How is the null hypothesis chosen (why is it null)? What is the importance of rejecting the null hypothesis, can we make a geneeral staement about the population base..
Explain how does process prevent a blockage of glycolysis : The reactions of glycolysis are catalyzed by enzymes and obviously proceed without much problem. However, when we look at some of the individual steps, they have positive standard free energies. What are these steps and how does the process preven..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Basic assumption of multiple regression analysis

The appropriate use of multiple regression depends on being able to make four basic assumptions about the data being used to develop the regression model:

  Probability distribution and standard deviation

The New York City Housing and Vacancy Survey showed a total of 59,324 rent-controlled housing units and 236,263 rent-stabilized units built in 194 or later.

  Levels of significance questions

Many times researchers preselect the value of alpha of .01 or .001. What are the factors that allow selection of either of those levels of significance?

  Claim with traditional method-hypotheses test

Use the traditional method to test the given hypothesis. Assume that the population is the normally distributed and that the sample has been randomly selected.

  Reaction times for drivers reacting to incadescent lights

Automobile manufacturers are interested in the difference in reaction times for drivers reacting to traditional incadescent lights and to LED lights.

  Statistics-probability-distribution

Consider a random sample of six families who are asked if their children have an influence on their vacation destination.

  Case study of flee market bargains

Use the above information to calculate the number of watches (units) and the sales dollars we need in order for our flea market business to break even for the day.

  Research and statistics-t-test

A hypothesis states a difference exists between two populations. Sometimes this is an obvious conclusion because the means will be very different.

  Computing z-score and percentile

The weight for a group of 18 month-0ld girls are normally distributed with a mean of 24.4 pounds and a standard deviation of 2.6 pounds. Use the table to find the percentage of 18 month-old girls who weigh more than 27.8 pounds.

  Question on anova in minitab

Samples are shown of volatility (coefficient of variation) for sector stocks over a certain period of time.

  Correlation between variables

Demonstrates clearly and fully the ability to use Excel to perform the correlation for the data set.

  Expected value of reader digest sweepstakes

Supposing that there is no cost of entering the sweepstakes, find the expected value of the amount won for one entry. Determine the expected value if the cost of entering this sweepstakes is the cost of a postage stamp. Is it worth entering the cont..

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!

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