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

question 73

Multiple Choice

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.

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