- In conducting the hypothesis test below, your sample consists of 23 observations, with a mean of 22.7 and standard deviation of 1.28. How, 3 22.1 H141. > 22.1 a) This is a _S'EEEE.EQHE__.9 b) Calculate the test statistic, rounded to 3 decimal places. t : C] c) At a = 0.1, the rejection region is "'t > 1.321 \"t 1.717 none ofthe above d) The decision is to reject H0 since the test statistic falls in the rejection region. fail to reject H0 since the test statistic does not fall in the rejection region. reject H1 since the test statistic falls in the rejection region. fail to reject H1 since the test statistic does not fall in the rejection region. none of the above