Example 3 A group of engineer wants to determine the stress level at which a wing...

 

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Example 3 A group of engineer wants to determine the stress level at which a wing component on an aircraft will fracture for a given fractured toughness. Table below shows the temperature and Impact Energy data tested on tempered steel alloy. Calculate the coefficient of correlation for the data. Then intepret the result. Temperature (°C) 100 75 50 25 0 -25 -50 -65 -75 -85 -100 -125 -150 -175 Temperature(°C).x 100 75 Example 4 A group of engineer wants to determine the stress level at which a wing component on an aircraft will fracture for a given fractured toughness. Table below shows the temperature and Impact Energy data tested on temperes steel alloy. Find the least square regression line for the following data. 50 25 0 -25 -50 -65 -75 Impact Energy (J) 89.3 88.6 87.6 -85 -100 -125 -150 -175 85.4 82.9 78.9 73.1 66.0 59.3 47.9 34.3 29.3 27.1 25.0 Impact Energy (J), y 89.3 88.6 87.6 85.4 82.9 78.9 73.1 66.0 59.3 47.9 34.3 29.3 27.1 25.0 Example 3 A group of engineer wants to determine the stress level at which a wing component on an aircraft will fracture for a given fractured toughness. Table below shows the temperature and Impact Energy data tested on tempered steel alloy. Calculate the coefficient of correlation for the data. Then intepret the result. Temperature (°C) 100 75 50 25 0 -25 -50 -65 -75 -85 -100 -125 -150 -175 Temperature(°C).x 100 75 Example 4 A group of engineer wants to determine the stress level at which a wing component on an aircraft will fracture for a given fractured toughness. Table below shows the temperature and Impact Energy data tested on temperes steel alloy. Find the least square regression line for the following data. 50 25 0 -25 -50 -65 -75 Impact Energy (J) 89.3 88.6 87.6 -85 -100 -125 -150 -175 85.4 82.9 78.9 73.1 66.0 59.3 47.9 34.3 29.3 27.1 25.0 Impact Energy (J), y 89.3 88.6 87.6 85.4 82.9 78.9 73.1 66.0 59.3 47.9 34.3 29.3 27.1 25.0

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X 100 75 50 25 O 25 50 65 75 85 100 125 150 175 from the given information X Temperature y Im... View the full answer