Length of Confidence Interval

• The confidence level has its corresponding coefficients called confidence of coefficients.
• Confidence interval or interval estimate is a range of values that is used to estimate a parameter.
• Confidence Interval

  • Lower Limit < µ < Upper Limit
• LL = Sample mean (X) - Margin of Error (E)

  UL = Sample mean (X) + Margin of Error (E)
• Margin of Error

  A) sample size

  B) confidence coefficient

  C) standard deviation

  D) margin of error

  
• Confidence Level

  • is the likelihood measure of the confidence interval that is represented by a percentage.
  • the confidence coefficient is used to find the margin of error.
• Length of the Confidence Interval

  L = UL - LL; L = 2E
• The Diffferent Formulas:

  A) Lower Limit

  B) Upper Limit

  C) Margin of Error

  D) Length of the Confidence of Interval