The point-slope form of the equation of a line that passes through points (8, 4) and (0, 2) is y – 4 = y minus 4 equals StartFra
2 answers:
You might be interested in
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)