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Unformatted text preview: P(T<=t) onetail 0.002 t Critical onetail 3.143 P(T<=t) twotail 0.0033 t Critical twotail 3.71 PG.) 513 #18 a. No There is not enough evidence tTest: Paired Two Sample for Means Reported height Measured height Mean 65.6 66.6 Variance 27.9 24.7 Observations 12 12 Pearson Correlation 0.76 Hypothesized Mean Difference df 11 t Stat0.98 P(T<=t) onetail 0.12 t Critical onetail 1.8 P(T<=t) twotail 0.35 t Critical twotail 2.201 b. tTest: TwoSample Assuming Unequal Variances Reported height Measured height Mean 65.6 66.58 Variance 27.9 24.7 Observations 12 12 Hypothesized Mean Difference df 22 t Stat0.48 P(T<=t) onetail 0.32 t Critical onetail 1.72 P(T<=t) twotail 0.64 t Critical twotail 2.074 PG.) 521 #6 FTest TwoSample for Variances pre post Mean 12.7 13.2 Variance 375.12 427.4 Observations 3 3 df 2 2 F 0.9 P(F<=f) onetail 0.5 F Critical onetail 0.05...
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 Spring '12
 Statistics, Variance, Pg., Student's ttest, Critical onetail

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