Graphs and Stats

This is the screenshot of what the survey looks like using the google forms website that I did. I put on the 'shuffle option order' to shuffle around the choices to prevent all surveys to start with a certain browser first.

After conducting the study, I placed all of the data I had collected into an excel sheet and later into a Minitab worksheet. I then used Minitab to construct a pie chart and a tally of discrete variables. The pie chart shows that exactly 75% chose google chrome. This is interesting due to the fact that my original question was, "Does the proportion of Google Chrome users exceed 75% of the proportion of users of other web browsers? "

 Browser Preferred       Count
                   Firefox       5
     Google Chrome       63
   Internet Explorer        4
     Microsoft Edge        1
                   Safari        11
                       N=         84

I used those counts listed above to run a Chi-Square goodness-of-fit test for observed counts.

After running this test, I decided to go a step further and run a confidence interval for one proportion.

This confidence interval test results in a p-value of 0.558 and so we fail to reject our null hypothesis at the 0.05 level of significance. Therefore there is not enough evidence to suggest that the users of google chrome exceeds the users of other browsers by 75%.