Answer:
-4.41666666667
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
1. 8 / ½ or 8 * 2
2. You get 16
Answer:
24×25-24×18+10
Step-by-step explanation:
it's gonna be 150 simplified
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)