A rocket motor is manufactured by bonding together two types of propellants, an Igniterand a sustainer. The shear strength of the bond (y) is thought to be a linear function of theage of the propellant (x) when the motor is cast. Twenty observations are shown in thefollowing table.Observation StrengthAgeObservation StrengthAgeNumber(psi)(weeks)Number(psi)(weeks)12158.7015.50112165.2013.001678.1523.75122399.553.7532316.008.00131779.8025.0042061.3017.00142336.759.752207.505.00151765.3022.001708.3019.00162053.5018.0071784.7024.00 I172414.406.002575.002.50182200.5012.502357.907.50192654.202.00 102277.7011.00201753.7021.50a. Fit a straight line by the method of least squares. Proved the slope, intercept and the R.b. Does the age of the propellant appear to contribute any information to the prediction ofshear strength of the bond? Test at the 5% level of significance. Provide the completeRegression Analysis.c. If a propellant age is 28 weeks, find a 95% prediction interval for the shear strength ofthe bond.

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Answered: a. Fit a straight line by the method of…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter2: Equations And Inequalities

Section2.7: More On Inequalities

Problem 44E

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