A rocket motor is manufactured by bonding together two types of propellants, an igniter and…

A rocket motor is manufactured by bonding together two types of propellants, an igniter and asustainer. The shear strength of the bond yis thought to be a linear function of the age of thepropellantxwhen themotoris cast. Twentyobservationsareshown in thefollowing table. a) Constructascatterplotofstrength(y)versusage(x). Verifythat alinear modelisappropriate. b) Computetheleast-squareslineforpredicting strength from age. c) Determinethe correlationandcomment. 1

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