Correlation provides a relationship between variables in a process. The variable
ID: 3132509 • Letter: C
Question
Correlation provides a relationship between variables in a process. The variables data needs to be gathered all at the same data point to be useful. Regression provides the best fitting line through the data. If there is significance in the Pearson Product Moment (r) statistic, then regression may provide the ability to predict. For the following data calculate the r value and determine if there is statistical significance between tool life in hours and the other variables. Construct a scatter diagram for each set of variables. Analyze the data and provide recommendations to maximize tool lifeExplanation / Answer
all the variables x2,x3,x4 are significantly correlated to x1 at 5% level of significance
the regression analysi is given as
only x4 are significant with negative effect on x1, so by decreasing x4 we can increase x1
scatter plot is not getting upload. please tell way to upload
X1 X2 X3 X4 X1 1 -0.5523 0.53868 -0.73857 correlation 0.0175 0.0211 0.0005 p-value x1 tool life x2 feed rate x3 collant flow x4 chip burden