《商务统计学概论》（英文版） CHAPTER 10: Hypothesis Testing, One Population Mean or Proportion

dIrectional, Right-Tail Tests Ho: pop parameter s value H1: pop parameter> value Do Not Reject o Reject o Z o 2002 The Wadsworth Group

Directional, Right-Tail Tests H0 : pop parameter  value H1 : pop parameter > value −a a +z Do Not Reject H 0 Reject H 0 © 2002 The Wadsworth Group

m Directional, Left-Tail Tests 0: pop parameterz value H1: pop parameter< value Reject H Do Not Reject H 1-+ 杬 o 2002 The Wadsworth Group

Directional, Left-Tail Tests H0 : pop parameter  value H1 : pop parameter < value a −a 杬 Reject H 0 Do Not Reject H 0 © 2002 The Wadsworth Group