Question 285509: Can someone help me PLEASE, I am completely stuck and I can not even think on where to begin, I have tried and tried and come up with different answers each time.
A teacher wishes to compare two different groups of students with respect to their mean time to complete a standardized test. The time required is determined for each group. The data summary is given below. Test the claim at = 0.10, that there is no difference in variance. Give the critical region, test statistic value, and conclusion for the F test.
n1 = 40 s1 = 44
n2 = 60 s2 = 74
= 0.10
I need to find the · State the null and alternate hypotheses.Determine which test statistic applies, and calculate it.Determine the critical region. State your decision: Should the null hypothesis be rejected?”
You are given the following data. Test the claim that there is a difference in the means of the two groups. Use = 0.01.
Group A Group B
= 7 = 10
= 12 = 11
= 66 = 92
State the null and alternate hypotheses
Determine which test statistic applies, and calculate it
Determine the critical value(s).
State your decision: Should the null hypothesis be rejected?
I need these answers A.S.A.P. please I am already having a very hard time with this class and my teachers patience is wearing very thing, Thank you sooooo very much for your time
Found 2 solutions by stanbon, richwmiller:
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A teacher wishes to compare two different groups of students with respect to their mean time to complete a standardized test. The time required is determined for each group. The data summary is given below. Test the claim at
alpha = 0.10, that there is no difference in variance. Give the critical region, test statistic value, and conclusion for the F test.
n1 = 40 s1 = 44
n2 = 60 s2 = 74
----------------
I need to find the ·
State the null and alternate hypotheses
Ho: sigma1^2 = sigma2^2
Ha: sigma1^2 is not equal to sigma2^2
-------------------------
Determine which test statistic applies and calculate it.
2-Sample F-Test
I used a Ti-84 calculator to get the following:
test statistic: F = 0.35354..
p-value = 0.0008374...
--------------------------
Determine the critical region.
Reject Ho if
--------------------------
State your decision: Should the null hypothesis be rejected?”
Since the p-value is less than 10%, reject Ho.
=======================================================
You are given the following data. Test the claim that there is a difference in the means of the two groups. Use = 0.01.
Group A Group B
= 7 = 10
= 12 = 11
= 66 = 92
State the null and alternate hypotheses
Ho: uA -uB = 0
Ha: uA - uB is not 0
----------------------------
I ran a 2-Sample T test on my TI-84 calculator and got the following:
----
Determine which test statistic applies, and calculate it:
test stat: t = -0.28207
p-value = 0.7934..
--------------------------
Determine the critical value(s).
State your decision: Should the null hypothesis be rejected?
Since the p-value is greater than 1%, fail to reject Ho.
-------------------------------------------------------------
Cheers,
Stan H.
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I need these answers A.S.A.P. please I am already having a very hard time with this class and my teachers patience is wearing very thin, Thank you sooooo very much for your time
Answer by richwmiller(17219)  (Show Source):
You can put this solution on YOUR website! If you tried and tried so much why don't you tell us what you tried so we can guide you?
Do not I repeat Do not ever tell us you need an answer asap on this website. Everyone needs their answers as soon as possible. You are wearing our patience thin. What makes you so special?
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