answer 4 only Arocket motor is marufactured by bonding together two types of propelants. an igniter and a sustainer. The shear strength of the bond is thought to be a linear function of the age ofthe propellant when the motor is cast. Twenty observations are shown in the following table.Observation Strength.(ps) (weeks)Age .Observation StrengthAge(psi) I (weeks)NumberNumber12585 6.5 I112210517522367.913.3 I12266427532326125 I 1317898282287.7. 18 I 141763725115 1 152217517753276.2168.720.8 I162175219420713 23 I 172345.7515244 I 18181832063524293 I 1924244 los179471688 15 304240955102078 I Question 4Calculate and Interpret the coefficient of determination R?,OR-O88480 4% of the ebserved variante of strength about their mean is attributable to the linear relationship between strength and ape.OR-0.94094.06 of the observed varlance of strength about their mean is attributable to the linear retationship between strength and age.OR-087787,7% of the cbserved variance of strencth about their mean is attributable to the Inear relationsip between strength and age.OR-OB84(100 - 88A ef the observed varlance of strength about their mean is attributable to the linear relationship hetween strength and age.O R -0940(100 - 94.0 el the observed varlance of strength about their mean is atfributable to the linear relationship between strength and ape.Question 5Does the age of the propellant appcar to contribute any information to the prediction of shear strength of the bond? Test at the 1% level of significance.O Since Pvalue O0t. therefore at 1% level of sigpificance, the age of the propettant appear to contrbute anv intormation to the prediction of thear strength of the bond.O Snce valueOus. therefore at 1% level ot ignhcance the age of the propeftant appea to contrbute any nformation to the predicton of shear strength of the bond.O since value 001. therefore at 1 tevel of sigificnce, the ape of the propetant does not contr bute to the predicion of shear strength of the bond.O Since Pvatue 01 therefore at 1 eelet signfcance the ape of the propeltant dces net contribate to the prediction of shear strength of the bond,

Question

Accepted Answer

Given data,

Strength
Age

2565
6.5

2367.9
13.3

2326
12.5

2287.7
18

2217.5
11.5

2188.7…