The formula $s _ { \text {difference } } = \sqrt { S ^ { 2 } \text { difference } }$ is used to calculate the:
A) pooled variance estimate.
B) standard deviation for an independent-samples t test.
C) squared standard error.
D) estimated standard deviation of the distribution of mean differences.

Question

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The formula $s _ { \text {difference } } = \sqrt { S ^ { 2 } \text { difference } }$ is used to calculate the estimated standard deviation of the distribution of mean differences, which is a key component in hypothesis testing for comparing two means.

The Formula sdifference =S2 difference s _ { \text {difference } } = \sqrt { S ^ { 2 } \text { difference } }sdifference ​=S2 difference ​

The Formula $s _ { \text {difference } } = \sqrt { S ^ { 2 } \text { difference } }$