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AnnZ [28]
4 years ago
15

Two separate samples receive two different treatments. The first sample has n = 9 with SS = 710, and the second has n = 6 with S

S = 460. Compute the pooled variance for the two samples.
Mathematics
1 answer:
aniked [119]4 years ago
3 0

Answer:

The pooled variance for the two samples is 90

Step-by-step explanation:

Here in this question, we are interested in computing the pooled variance for the two given samples.

From the question;

n1 = 9

ss1 = 710

n2 = 6

ss2 = 460

The pooled variance can be calculated using a mathematical formula as shown below;

S^2 =( ss1 + ss2)/(n1 + n2 -2)

where S^2 refers to the pooled variance of both samples.

Plugging the values into the equation, we have ;

S^2 = (710 + 460)/9 + 6 -2 = 1170/13 = 90

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