We can simplfiy to be
.
We know that is 10 and
is i, so the answer is 10i, or D.
What is the correct definition of the word bias? a. particular point of view b. a personal or unreasoned judgment c. to study in
1 answer:
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Answer:
(22.12, 27.48)
Step-by-step explanation:
Given : Significance level :
Sample size : n= 8 , which is a small sample (n<30), so we use t-test.
Critical values using t-distribution:
Sample mean :
Standard deviation :
The confidence interval for population means is given by :-
i.e.
Hence, the 95% confidence interval, assuming the times are normally distributed.= (22.12, 27.48)