Maurice Tutor

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Category > Management Posted 03 Feb 2018 My Price 4.00

pooled variance

9.   Two separate samples, each with n 5 15 individuals, receive different treatments. After treatment, the first sample has SS 5 1740 and the second has SS 5 1620.

a.  Find the pooled variance for the two samples.

b.  Compute the estimated standard error for the sample mean difference.

c.  If the sample mean difference is 8 points, is this enough to reject the null hypothesis and conclude that there is a significant difference for a two- tailed test at the .05 level?

 

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Maurice Tutor
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Status NEW Posted 03 Feb 2018 10:02 PM My Price 4.00

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