### How to calculate statistical significance of survey data

Posted:

**Sat Mar 25, 2017 12:25 am**Hello,

I conducted a random survey about food labels of 132 people who were responsible for the grocery shopping in the household. My response rate was 80%. My population size is very large as it would be all the households in Canada (about 13,320 000) How best should I show the reliability of my data? How should I calculate my margin of error or confidence interval? I have calculated the mean of each question and I am putting the data in bar graphs and would like to put the margin of error on my graphs. I have looked at some calculations but I am not 100% sure of what I am doing. Thank you very much for your help.

Aiden

I conducted a random survey about food labels of 132 people who were responsible for the grocery shopping in the household. My response rate was 80%. My population size is very large as it would be all the households in Canada (about 13,320 000) How best should I show the reliability of my data? How should I calculate my margin of error or confidence interval? I have calculated the mean of each question and I am putting the data in bar graphs and would like to put the margin of error on my graphs. I have looked at some calculations but I am not 100% sure of what I am doing. Thank you very much for your help.

Aiden