Test the strength of linear relationship with H0 : b = 0 and H1 : b ̸= 0 using significance level α = 0.05. Forecast the electric resistence when the carbon content is 50% and calculate a prediction interval for the predicted point with 95% confidence.

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Test the strength of linear relationship with H0 : b = 0 and H1 : b ̸= 0 using significance level α = 0.05. Forecast the electric resistence when the carbon content is 50% and calculate a prediction interval for the predicted point with 95% confidence.

Carbon content r(%)
0.15
0.3
0.4 0.55 0.65
0.8 0.95
Electric resistance y(u2)
| 16
18
19
21
22.5
24
26
Transcribed Image Text:Carbon content r(%) 0.15 0.3 0.4 0.55 0.65 0.8 0.95 Electric resistance y(u2) | 16 18 19 21 22.5 24 26
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