Answer:



Step-by-step explanation:



2nd


3th


What we use?
We use that

and

Answer: 
Step-by-step explanation:
The confidence interval estimate for the population mean is given by :-
, where
is the sample mean and ME is the margin of error.
Given : Sample mean: 
The margin of error for a 98% confidence interval estimate for the population mean using the Student's t-distribution : 
Now, the confidence interval estimate for the population mean will be :-

Hence, the 98% confidence interval estimate for the population mean using the Student's t-distribution = 
It’s a! hoped this helped you!!!!
Can you give more information?
Answer:
First point goes on -2
Step-by-step explanation: