Question

Find the results of an opinion poll from the internet, a newspaper, or a magazine

Describe your case briefly and discuss how they explored the data, which tools and statistics had been applied (e.g., plot, mean, standard deviation…)

Answer 1

First we describe what is openion poll and what is exit poll. Both are survey but in exit poll ,survey occured at a time of voting of election.After you gave vote then ome one ask some questions.

But in openion poll which is more broad then exit poll. This occured before declaration of date of voting .

In openion pollsome news agency or in internet , they make shedule or questioniare and fillup this with the help of people.

Both urban and rural ,it may be differe,their questioniare based on government works,they do good work or not,how you are satisfied this. By using pie-diagram we differentiate government works in different sector like as farmer,electricity,society,urban rural and so on.

We also take data for different sex, like as male and female. Openion poll different for different states.a

In openion poll they take some randomly sample of voulenters in each states mostly. In sampling they use PPS SAMPLING method. States whose bigger population,takes bigger sample.After collecting data, they analysing this, we draw q-q plot for checking data comes from normal population or not. Now find variance or standard deviation to check how's variation between data. And last they using F test and conclude. Result for whole populations.