Question

Confidence interval for a simple linear regression coefficient
$\beta 1is$
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Answer 1

Answer:

With simple linear regression, to compute a confidence interval for the slope, the critical value is a t score with degrees of freedom equal to n - 2. ... df = n - 2 = 101 - 2 = 99. The critical value is the t statistic having 99 degrees of freedom and a cumulative probability equal to 0.995.

Answer 2

Confidence interval

Step-by-step explanation:

• The interval is the set of value for which hypothesis test of level of 5%

         cannot be rejected.

• The 95% confidence level for β is -5.9667+ 2.0117 or (-7.2,-4.8).