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

What is a purchase return, What is a purchase return? A buy purchase re...

What is a purchase return? A buy purchase return occurs when a buyer profits products that it has bought from a provider. Under the regular inventory system, the cost of the

Report on the residual plots, Report on the residual plots – are the assump...

Report on the residual plots – are the assumptions of the regression met

Define best appraise , Define best appraise To make and calculate of valu...

Define best appraise To make and calculate of value of a resource, for example a good financial commitment or financial commitment resource, particularly of the value of property

Management accounting 2, foster company makes 20000 units per year that in ...

foster company makes 20000 units per year that in uses in products it manufactures

Marketing research field surveys, In marketing research field surveys ar...

In marketing research field surveys are commonly used to collect primary data from the respondents. 1. Through Personal Interviews: The investigator follows a rigid proced

State appropriate alternative hypotheses, A cognitive psychologists knows t...

A cognitive psychologists knows that concrete words, which easily evoke images (.e.g. "sunset", "truck") are easier to remember than abstract words, but she would like to know if t

Interpolation and extrapolation, What is meant by interpolation and extrapo...

What is meant by interpolation and extrapolation. State the assumptions used for interpolation and extrapolation

Operational research, what is the defination of model in operational resea...

what is the defination of model in operational research?

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