1) Many types of error will cause a computer program to terminate or give incorrect results. One type of error is punctuation. For instance, if a comma is inserted in the wrong place, the program might not run. A study of programs written by students in an introductory programming course showed that 75 out of 300 errors selected at random were punctuation errors. Round your answers to THREE decimal places.

(A) Find 99% confidence interval for the proportion of errors made by beginning programming students that are punctuation errors. Interpret the results in a clear sentence

Margin of Error: ______

99% Confidence Interval: ___________________

Interpretation Statement: _________________________________________________________________________________ ________________________________________________________________________________

(B) Find a 95% confidence interval. Is this interval longer or shorter? Why?

Margin of Error: ______

95% Confidence Interval: ___________________

Longer or Shorter and Why?