At the point when the chocolate bars process at Freddy's Chocolate Factory is 'in control', it produces chocolate bars with a mean length of 120mm. Occasionally, quality control assessors select a random sample of 36 chocolate bars. On the off chance that the mean length of tested chocolate bars is excessively long or excessively short, the chocolate bars making procedure is closed down. The last sample demonstrated a mean of 120.2mm. The population standard deviation is 1.2mm. Using alpha=0.05, the critical value is?