The 95% confidence interval for the slope will be B. (-0.308,-0.019).
How to calculate the interval?
The confidence interval based on the information and diagram will be:
= -0.1636 + 2.228 × 0.06488
= 0.019
Also, -0.1636 - 2.228 × 0.06488
= -0.308
In conclusion, the correct option is (-0.308,-0.019).
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