The Z-Score exists greater than 2, therefore the sample's mean difference exists significant.
Z-Score exists described as the mathematical calculation that enumerates the relationship between the value and the mathematical mean of a set of values. It exists estimated in terms of standard deviations from the mean.
The Z-Score of a measurement x exists (x - μ)/ δ
x - μ = 1.74 and δ= 0.69
Hence, Z = 1.74/0.69
= 2.5217391304
approximately = 2.52
Because Z-Score exists greater than 2, therefore the sample's mean difference exists significant.
To learn more about Z-Score refer to:
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