(a)What is the sample test statistic?         0.458       1.774       -1.255       -1.744 (b)Do you reject or fail to reject the null hypothesis? Are the data statistically significant?          Since the P-value is less than the level of significance, the data are statistically significant. Thus, we reject the null hypothesis.       Since the P-value is greater than the level of significance, the data are statistically significant. Thus, we reject the null hypothesis.       Since the P-value is less than the level of significance, the data are not statistically significant. Thus, we fail to reject the null hypothesis.       Since the P-value is less than the level of significance, the data are statistically significant. Thus, we fail to reject the null hypothesis.       Since the P-value is less than the level of significance, the data are not statistically significant. Thus, we reject the null hypothesis.   (c)What is the P-value?          .0435       .0869       .9565       .0471 (c)Which of the following is NOT true about the margin of error of a statistic?      The margin of error measures, roughly, the average difference between the statistic and the population parameter.       The margin of error can never be a negative number.       The margin of error is the estimated standard deviation of the sampling distribution for the statistic.       The margin of error increases as the sample size(s) increases.

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