Explore BrainMass

Explore BrainMass

    Number of Respondents Required

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    In a public opinion poll 48% of 189 respondents favor an elimination of taxes on dividend income. How many respondents would be needed to calculate a 95% confidence interval (for the proportion of people who favor an elimination of taxes on dividend income) that has a total width no greater than 4% (the estimate must be within +or - 2% of the true population proportion)?

    © BrainMass Inc. brainmass.com June 3, 2020, 8:27 pm ad1c9bdddf

    Solution Preview

    Solution. This is about the least sample size problem. As we know that the margin of error ME<=2%, and the sample mean of the proportion of people ...

    Solution Summary

    The solution determines the number of respondents required.