please solve 2.2 only and circle the final answer

Question 2.2. Suppose the data science class decides to construct a 90% confidence interval instead of a 95% confidence interval, but they still require that the width of the interval is no more than 6% from left end to right end. Will they need the same sample size as in 2.1 ? Pick the right answer and explain further without calculation. (6 Points) 1. Yes, they must use the same sample size. 2. No, a smaller sample size will work. 3. No, they will need a bigger sample. Type your answer here, replacing this text