Example of selection a sample, Basic Statistics

Assignment Help:

Q. Example of Selection a Sample?

Ans.

Suppose a presidential election is approaching and many people are interested in knowing which candidate is most likely to win the vote. You have been assigned the task of predicting the future president one month before Election Day. How do you do it?

Solution: Here is one way that you might approach this problem. Use the 4 steps listed above.

1) The objective of this survey is to determine what percent of voters are likely to vote for the republican candidate, the democratic candidate or another candidate.

2) The variable is the way each member of the population chooses to vote. The population is all of the registered American voters.

3) You may decide to randomly dial phone numbers using U.S. area codes until you find 1000 registered voters. Ask them which candidate they plan to vote for.

4) If the sample you have chosen is a good representation of the voting American public, then you might assume that the percentage of voters in your sample who chose to vote republican will be the same percentage of voters in the entire population who will vote republican. You can assume the same for the democratic candidate as well as the other candidates.


Related Discussions:- Example of selection a sample

Survival analysis and regression for rates, This assignment counts for 40% ...

This assignment counts for 40% of the total grade for the subject.  There are 100 marks for the assignment.  Including figures and tables, it should be no more than 10 pages. Yo

Nm, Ask question #Mmnhkinimum 100 words accepted#

Ask question #Mmnhkinimum 100 words accepted#

Quartile Deviation, Quartile Deviation The range as a measure of dispersio...

Quartile Deviation The range as a measure of dispersion discussed above has certain limitations. It is based on two extreme items and it fails to take account of the scatter withi

R programm, 1. Generate a large dataset ( at least 1000 observations) µ wit...

1. Generate a large dataset ( at least 1000 observations) µ with a known mean, µ between 20 and 40 and variance s = 9 using rnorm(). identify it as D. Use the functions mean() and

Structural analysis and probability , 1.) Consider two chains R and S, each...

1.) Consider two chains R and S, each having 3 and 6 links respectively. Each link's resisting strength is normally distributed with a mean of 60,000 psi and standard deviation of

INDEX NUMBER, FUNCTION SIMPLE AGGREGATIVE, SIMPLE RELATIVE

FUNCTION SIMPLE AGGREGATIVE, SIMPLE RELATIVE

Life tables, For public health purposes, the force of mortality in a popula...

For public health purposes, the force of mortality in a population is usually measured by means of such indices as crude death rate. Infant mortality rate, specific death rate at d

Bond Relationship, Bond Relationship A debt gadget issued through a offici...

Bond Relationship A debt gadget issued through a official or just the formal legal procedure and secured either by the pledge of detailed properties or revenues or by the general

Replacement theory, who is the mathematician who invented replacement theor...

who is the mathematician who invented replacement theory of operation research

Standard price, Stock at hand 1000 unit at #0.80 each, received 2000 units ...

Stock at hand 1000 unit at #0.80 each, received 2000 units at #1.10 each,

Write Your Message!

Captcha
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