A z-value of 2.57 indicates that: a mistake has been made in computations, since a z-value cannot
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Question:
A z-value of 2.57indicates that:
- a mistake has been made in computations, since a z-value cannot have decimals
- the data set has a positive mean, or expected value
- the number of standard deviations of an observation is to the left of the mean
- the number of standard deviations of an observation is to the right of the mean
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