1.The data from Exercise 16.24 was analyzed using the Compare Means/Oneway ANOVA procedure on SPSS. The output is copied below.

Oneway Descriptives Latency in seconds N Mean Std. Deviation Std. Error 95% Confidence Interval for Minimum Maximum Mean Lower Bound Upper Bound 15 9.40 1.404 363 8.62 10.18 7 12 Non-Smokers 15 9.60 4.405 1.137 7.16 12.04 A 17 Delayed Smokers 15 9.93 6.519 1.683 6.32 13.54 22 Active Smokers 46 9.64 4.513 673 8.29 11.00 22 Total ANOVA Latency in seconds Sum of Squares Mean Square F Sig. Between Groups 2.178 2 1.089 051 .950 894.133 42 21.289 Within Groups 896.311 44 Total Post Hoc Tests Multiple Comparisons Dependent Variable: Latency in seconds LSD (1) Smoking Condition (J) Smoking Condition Mean Difference Std. Error Sig 95% Confidence Interval (I-J) Lower Bound Upper Bound .200 1.685 3.60 3.20 Delayed Smokers Non-Smokers Active Smokers .533 1.685 753 -3.93 2.87 Non-Smokers .200 1.685 -3.20 3.60 Delayed Smokers Active Smokers .333 1.685 .844 -3.73 3.07 533 1.685 .753 -2.87 3.93 Non-Smokers Active Smokers Delayed Smokers .333 1.685 .844 -3.07 3.73