The width of a confidence interval estimate for a proportion will be :

The width of a confidence interval estimate for a proportion will be
 
  A) wider for a sample size of 100 than for a sample size of 50.
  B) narrower for 99 confidence than for 95 confidence.
  C) narrower for 90 confidence than for 95 confidence.
  D) narrower when the sample proportion is 0.50 than when the sample proportion is 0.20.

Q. 2

The standardized normal distribution is used to develop a confidence interval estimate of the population proportion when the sample size is sufficiently large.
 
  Indicate whether the statement is true or false

Q. 3

The standardized normal distribution is used to develop a confidence interval estimate of the population proportion regardless of whether the population standard deviation is known.
 
  Indicate whether the statement is true or false

Q. 4

The t distribution is used to develop a confidence interval estimate of the population proportion when the population standard deviation is unknown.
 
  Indicate whether the statement is true or false

Q. 5

The confidence interval estimate of the population proportion is constructed around the sample proportion.
 
  Indicate whether the statement is true or false