Which of the following statements are correct when deciding whether to use the z or the t distribution

Which of the following statements are correct when deciding whether to use the z or the t distribution

Which of the following statements are correct when decidingwhether to use the z or the t distribution a. Use zin a test ofproportions when n?? and n(1 ??) are greater than or equal to 5. b.Use z when we have a normal population and we know the standarddeviation. c. Use t when the population is normal and thepopulation standard deviation is not known d. All of the abovestatements are correct.


Comments are closed.