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fc. Is the addition of the independent variable 23, the repairperson who performed the service, statistically significant? Use o = 0.05. Compute the t test

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\fc. Is the addition of the independent variable 23, the repairperson who performed the service, statistically significant? Use o = 0.05. Compute the t test statistic for the significance of 23 (to 2 decimals). Enter negative value as negative number. -1.21

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