work shown... assistance needed please

9. Consider the following changes that might occur in the context of carrying out either a one or two sample z test. For each, first answer: Will we be MORE likely or LESS likely to reject the null hypothesis if this happens? Then explain your answer. (a) if the sample size gets bigger in a one-sample z test (b) if the standard deviation of the box gets smaller in a one-sample z test (c) if the observed value of the statistic gets closer to the value in the null hypothesis in a one-sample z test