.When calculating confidence intervals in linear regression, certain assumptions need to be made. Which of the following statements is a violation of one or more of such assumptions? My regression equation has three B unknown parameters. I only have 5 observations. Measurements of y that have been collected at various values of the control variable x are independent of each other. I know that the variance of y changes considerably with respect to the control variable x All the other statements constitute a violation of assumptions to calculate confidence intervals in linear regression O O

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