Answer: (13.4996, 32.5004)
Step-by-step explanation:
The confidence interval for mean difference is given by :-
,
where
= sample mean difference .
= critical t value (two-tailed)
SE= Standard error.
Given :

SE= 4.2
Now, the confidence interval for mean difference will be :-
Hence, the required confidence interval : (13.4996, 32.5004)
Answer:
i dont understand
Step-by-step explanation:
The 3 represents a whole number.
The .62 is representing 62% of a number, and the three is the whole number.
1.Choice 4: 10
2. Choice 1: Add 5.2 to both sides if the equation.