A random sample of  n observations, selected from a normal population, is used to test the null hypothesis  H 0: σ 2 = 155. Specify the appropriate rejection region.    H a:  σ 2 ≠ 155,  n = 10,  α = .05     χ2 < 3.32511 or χ2 > 16.9190     2.70039 < χ2 < 19.0228     χ2 < 3.24697 or χ2 > 20.4831     χ2 < 2.70039 or χ2 > 19.0228

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
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A random sample of  n observations, selected from a normal population, is used to test the null hypothesis  H 0: σ 2 = 155. Specify the appropriate rejection region. 
  H a:  σ 2 ≠ 155,  n = 10,  α = .05
   
χ2 < 3.32511 or χ2 > 16.9190
   
2.70039 < χ2 < 19.0228
   
χ2 < 3.24697 or χ2 > 20.4831
   
χ2 < 2.70039 or χ2 > 19.0228
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