question answer c and E . can any one help me why 95% lower limit and upper limit not match with excel data as well as  correlation coefficient is not matching in answer E. 

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X 250 270 290 310 330 350 1800 300 у 1.955 1.935 1.89 1.92 1.895 1.865 11.46 1.91 xy 488.75 522.45 548.1 595.2 625.35 652.75 3432.6 *2 62500 72900 84100 96100 108900 122500 547000 3.8220 3.7442 3.5721 3.6864 3.5910 3.4782 21.894 X 250 270 290 310 330 350 1800 300 у 1.955 1.935 1.89 1.92 1.895 1.865 11.46 1.91 xy 488.75 522.45 548.1 595.2 625.35 652.75 3432.6 *2 62500 72900 84100 96100 108900 122500 547000 3.8220 3.7442 3.5721 3.6864 3.5910 3.4782 21.894

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Option c The calculations in both the excel sheet and paper are c... View the full answer