Question: What is the answer? Po A hypothesis test is to be conducted to determine if the mean waiting time for transport at a bus stop

What is the answer?

Po A hypothesis test is to be conducted to determine if the mean waiting time for transport at a bus stop has increased from 8.2 minutes. Previously the waiting time follows a normal distribution with standard deviation equal to 3.8 minutes. To test the hypothesis, a random sample of 25 customers was selected which yielded a mean time of 9.75. The computed value of our test statistic is: Oa 0.54 Ob. 2.04 Oc -2.04 ) d. 3.98

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