11. 6 In a certain type of metal test specimen. the nor- mal stress on a specimen is known to be functionally related to the shear resistance. The following is a net of ended experimental data on the two variables: Normal Stress, :1: Shoe: Resistance, 5; 26.3 26.6 26.4 2?.3 26.9 24.2 23.6 2?.1 2?.? 23.6 23.9 25.9 24.? 26.3 26.1 22.5 26.9 21.? 2?.4 21.4 22.6 25.6 25.6 24-9 - Construct a 99% confidence interval for u and [1'1 - Construct a 95% confidence interval fOI' 16124.5 - Construct a 95% prediction interval for x = 24.5