Factor of this trinomial x^2 - 11x + 24
1 answer:
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Answer:
(9.6, 25.7) is a 80% confidence interval for the average net change in a student's score after completing the course.
Step-by-step explanation:
We have n = 6, and s = 13.3367. The confidence interval is given by
where
is the
th quantile of the t distribution with n-1=5 degrees of freedom. As we want the 80% confidence interval, we have that
and the confidence interval is
where
is the 10th quantile of the t distribution with 5 df, i.e.,
. Then, we have
and the 80% confidence interval is given by (9.6, 25.7)