Tests

Question 1

How to get mean and standard deviation using a calculator

Answer 1

Firstly you enter the data
Mode
3
1

After inputting the data press ac
Then shift 1 then 4 then 2
Press = to get the mean

Shift 1 then 4 then 4
Press = to get the standard deviation

Question 2

How to get t tabulated at 5 percent level of significance when it is two tailed

Answer 2

5/100
———
2

Ans-1