Chapter 12 Solutions - 262 Chapter 12 Chapter 12 12.1(a 2.015(b 2.518 12.2(a 2.145(b 0.688 12.3(a 14(b 1.82 is between 1.761 p = 0.05 and 2.145 p =

Chapter 12 Solutions - 262 Chapter 12 Chapter 12 12.1(a...

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Chapter 12 12.1 (a) 2.015. (b) 2.518. 12.2 (a) 2.145. (b) 0.688. 12.3 (a) 14. (b) 1.82 is between 1.761 ( 0.05 p ) = and 2.145 ( 0.025 p ) = . (c) The P -value is between 0.025 and 0.05. (In fact, the P -value is 0.0451.) (d) 1.82 t = is significant at 0.05 α = but t at no 0.01 α = ) . 12.4 (a) 24. (b) 1.12 is between 1.059 ( 0.15 p = and 1.318 ( 0.10) p = . (c) The P -value is between 0.30 and 0.20. (In fact, the P -value is 0.2738.) (d) No, 1.12 t = is not significant at either 0.10 α = or at 0.05 α = . . 262 Chapter 12