Unformatted text preview: Variable 2 Mean 25.75 26 Variance 3.72 3.71 Observations 6 6 Pearson Correlation 0.97 Hypothesized Mean Difference df 5 t Stat1.29 P(T<=t) onetail 0.13 Ignore these values  for a onetail test t Critical onetail 2.02 Ignore these values  for a onetail test P(T<=t) twotail 0.26 t Critical twotail 2.57 Verify: 2.57 x A x B δ = x B x A sample standard deviation of : mean = S = OR, mathematically, μ = 0 (population mean of variable ) = Calculate the tstatistic and the pvalue: tstatistic: [ t = ABS(( mean ) * SQRT( n )/ S ) ] pvalue: [ p = TDIST( t ,df,2) ] (ToolsData AnalysistTest: Paired Two Sample for Means ) This is our tstatistic This is our pvalue This is the critical value of t ( t α /2 ) for = 0.05 (95% confidence) t /2 = [ t /2 = TINV(0.05,df) ]...
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This note was uploaded on 07/23/2008 for the course ME 345 taught by Professor Staff during the Spring '08 term at Penn State.
 Spring '08
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