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You run a statistical test comparing your sample mean 20 to the 'some value' of 15. Your z* value is positive and larger than the

You run a statistical test comparing your sample mean 20 to the 'some value' of 15. Your z* value is positive and larger than the zcrit value needed to reject the Ho. Which of the following statements is the correct conclusion for your result?

The mean is significantly smaller than 15
The mean is significantly different from 15
The mean is significantly larger than 15

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