An old extensive study conducted by a train transportation authority with thousands of passengers showed that a customer had to wait for an average of 10.3 minutes with a standard deviation of 6.2 minutes to buy their ticket. It is suspected that the current average waiting time is not 10.3 minutes anymore. A new random sample of 184 customers shows a mean of 9.3 and the same standard deviation of 6.2 minutes. Therefore we can safely assume that the population standard deviation is still 6.2 minutes. Use the 0.05 significance level. (a) In an attachment, write the null and alternative hypothesis, the formula for the test statistic, the decision rule (b) What kind of hypothesis test is this? A. right-tailed test B. two-tailed test C. left-tailed test Click to see additional instructions (c) What is the probability of committing a Type I error? (d) What is the value of the test statistic? (e) what is the correct decision? A. Accept the null hypothesis and reject the alternate hypothesis B. Reject the null hypothesis and accept the alternate hypothesis C. Reject the alternative hypothesis D. Do not reject the null hypothesis