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In an experiment, the independent variable is the percentage of hydrocarbons and the dependent variable is the purity of oxygen produced in a chemical distillation

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In an experiment, the independent variable is the percentage of hydrocarbons and the dependent variable is the purity of oxygen produced in a chemical distillation process that are present in the main condenser of the distillation unit. The simple linear regression and correlation analysis is performed in a sample of 9 observations. Results are as shown below: 55. = 1103.5560 $5yy = 0.1956 Q - 1.5295 b = 0.0117 +h- (b) Test the hypothesis that the slope is at most 0 at the 5% significance level by showing your solution

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