# Section 5; Question 8: # source('chap_11_sect_5_question_8_data.R') cor.test( DF$Weight, DF$Cholesterol ) # Section 5; Question 9: # source('chap_11_sect_4_question_11_data.R') cor.test( DF$Altitude, DF$Number_of_Home_Runs ) # Section 5; Question 10: # source('chap_11_sect_4_question_13_data.R') cor.test( DF$Average_SRE, DF$SIRS ) # Section 5; Question 11: # source('chap_11_sect_5_question_11_data.R') cor.test( DF$Money_Spent_on_Tutoring, DF$Graduation_Rate_2007, alternative='greater', conf.level=0.90 )