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A computer firm considers chips from the company A and from company B to install in the next generation of its computers. Everything else equal, computer firm will choose the chip with the lowest temperature variance. Let of and of be those variances. Assume there are two samples with sample variances $% and S;. Write down the i) the null hypothesis for each of the characters below ii) the type of test statistic that will be used by the character iii) Show the distribution and the confidence intervals to be used in a simple graph. a. The CEO of the computer firm b. A sales representative for company A C. A sales representative for company B