Show transcribed image text Question 3: You are in charge of designing a bridge. The bolts used in the bridge design must have a tensile strength of at least 550 lbs. A contractor approaches you with a new bolt, which is cheaper to produce. You test five samples of the new bolts. The tensile strengths of the five bolts was found to be 560, 565, 575, 555, and 558 respectively. Will you accept the new bolt? Assume a 95% confidence level and the population distribution of the bolts to be normal.
Question 3: You are in charge of designing a bridge. The bolts used in the bridge design must have a tensile strength of at least 550 lbs. A contractor approaches you with a new bolt, which is cheaper to produce. You test five samples of the new bolts. The tensile strengths of the five bolts was found to be 560, 565, 575, 555, and 558 respectively. Will you accept the new bolt? Assume a 95% confidence level and the population distribution of the bolts to be normal.
