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In what real life research situations would you use a z-score? t-score? when would we know the...

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Psychology

In what real life research situations would you use a z-score?t-score?

when would we know the population standard deviation? When wouldwe not know the population standard deviation?

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A zscore is a standardised score which indicates the standard deviation units of a score In other words a raw score derived from a particular sample distribution can be transformed into a z score that indicates the precise location of the score with respect to the distribution This    See Answer
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