elderonort 6. The average adult male height in a certain country is 170 cm. We suspect that the men in a certain city in that country might have a different average height due to some environmental factors. We pick a random sample of size 10 from the adult males in the city and obtain the following values for their heights (in cm): 176, 157, 160, 180, 165, 167, 162, 155, 166, 157 Assume that the height distribution in this population is normally distributed. Based on the observed data, is there enough evidence to reject Ho at significance level a=0.05? Show 8 or 6 steps of Hypothesis Testing