Assume you want to estimate with the proportion of students who commute less than 5 miles to work within 2%, what sample size would you need?

2 answers

Try this formula:
n = [(z-value)^2 * p * q]/E^2

Note: n = sample size needed; .5 for p and .5 for q are used if no value is stated in the problem. E = maximum error, which is .02; Z-value is found using a z-table (1.96 for 95% confidence as an example).

I'll let you take it from here.
1-.02=2.33=z-value
plug into the equation
[(2.33)^2*.5*.5]/(.02)^2

3393.06
Similar Questions
  1. I'm stuck on a question in MM207...Assume you want to estimate with the proportion of students who commute less than 5 miles to
    1. answers icon 2 answers
    1. answers icon 1 answer
  2. I need help with 2 questions-TODAY-HELP8. Assume that the MM207 Student Data Set is a random sample of all Kaplan students;
    1. answers icon 0 answers
    1. answers icon 1 answer
more similar questions