rk State College y! Yahoo You wish to test the following claim (Ha) at a significance level of a = 0.05. Ho: u = 58.2 Ha: / > 58.2 You believe the population is normally distributed and you know the standard deviation is o = 19.2. You obtain a sample mean of 62.3 for a sample of size n - 56. a.) The test is... left-tailed right-tailed two-tailed O b. ) At a = 0.05, the critical value = (use 2 decimal places) c. ) The test statistic = use 2 decimal places) d.) The test statistic is... O in the critical region O not in the critical region e. ) This test statistic leads to a decision to. . . O reject the null hypothesis O accept the null hypothesis O fail to reject the null hypothesis f. ) As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the population mean is greater than 58.2. There is not sufficient evidence to warrant rejection of the claim that the population mean is ater than 58.2