l Given a 99 CI concluded for 1u2 as510 what can be b 2 c no

l. Given a 99% CI concluded for 1-u2 as(-5·10) what can be b. >2 c. nothing 2. Given a 99% CI concluded? for -u2 as(-15,-5) what can be d.=-15 and =-5 3. Given a 99% CI concluded? for -u2as(15, 25) what can be b.fp>2 c, nothing d.,-15 and 2.25

Solution

1.

As 0 is inside (-5, 10), then

OPTION C: nothing [ANSWER]

***************

2.

As this interval is totally negative, then

OPTION A: u1 < u2 [ANSWER]

**************

3.

As this interval is totally positive, then

OPTION B: u1 > u2 [ANSWER]