The value of the z-score that is obtained for a hypothesis, Ask an Expert

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The value of the z-score that is obtained for a hypothesis test is influenced by several factors. Some factors influence the size of the numerator of the z -score and other factors influence the size of the standard error in the denominator. For each of the following, indicate whether the factor influences the numerator or denominator of the z-score and determine whether the effect would be to increase the value of z (father from zero) or decrease the value of z (closer from zero), in each case, assume that all other components of the z-score remain constant.

a- Increase the sample size.

b- Increase the population and standard deviation.

c- Increase the difference between the sample mean and the value of u specified in the null hypothesis.

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