1a) calculate the test statistic and p-value1b) calculate a 90% confidence interval for the population mean1c) state your conclusion and inference

Resting heart rate is known to be 71 beats per minute on average, with a standard deviation of 4 beats per minute. A set of researchers believe that heart rate will increase in men when they are waiting to go into a job interview. To test this hypothesis, a group of 9 men attending job interviews are fitted with a wireless heart rate monitor to wear on their chest in the hour preceding their interviews. Their average heart rates over this hour are shown in the table below. Answer the questions that follow. Participant Heart Rate (BPM) 80 2 74 73 72 78 OOO J O UI A W 75 70 74 69