The correct answer is -5 and 3
I took the test and this was the correct answer
Hope I helped :)
Answer:
Step-by-step explanation:
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Well the sum is 15+6=21. then you must do 81-21=60. So your answer must be t=60.
It’s hard to see the image
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 = 