school
Acemy

Constructing a Confidence Interval for a Population Proportion

AP Statistics· difficulty 3/5

Software output for a one-proportion z-interval shown.

1-PropZInt x = 75 n = 300 C-Level = 0.95 (0.2010, 0.2990) p̂ = 0.25

What is the margin of error?

  • A

    0.049

    check_circle
  • B

    0.098

  • C

    0.050

  • D

    0.025

Explanation

ME = (0.2990 − 0.2010)/2 = 0.049.

Want 10 more like this — adaptive to your weak spots?

Practice 10 like thisarrow_forwardPredict my AP score

Related questions

auto_awesomeAll Toolsquestion_answerHomework Q&Amenu_bookAP & SAT PreptimelineLearn Mode