Question 820296: 10. Answer True or False to each of the following
a) The margin of error is always greater than or equal to the standard error.
b) If a test is run and p=0.0356, then we can reject H0 at α=0.01.
c) If a 95% CI for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1.
d) If a 95% CI for the difference in two independent means is (2.1 to 4.5), there is no significant difference in means
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 10. Answer True or False to each of the following
a) The margin of error is always greater than or equal to the standard error.
ME = z*s
Since -oo < z < oo, the answer is false.
-----------------------------------------
b) If a test is run and p=0.0356, then we can reject Ho at alpha = 0.01.
Ans: true
--------------------
c) If a 95% CI for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1.
----
Find the midpoint of the endpoints::
2*point estimate = -4.5+2.1 = -2.4
point estimate = -1.2
Ans: false
---------------------------------------------
d) If a 95% CI for the difference in two independent means is (2.1 to 4.5), there is no significant difference in means
Ans: False because 0 is not in the interval.
==============
Cheers,
Stan H.
--------------
|
|
|
