Question 4 Your investment advisor proposes a monthly income investment scheme which promises a Tries remaining: variable income each month. You will invest in it only if you are assured an average 3 monthly income of at least 550 dollars. Your advisor also tells you that, for the past 41 Marked out of months, the scheme had incomes with an average value of 576 dollars and a standard 3.00 deviation of 120 dollars. Remove flag (a) Create a 90% confidence interval for the average monthly income of this scheme. (Round your answers to 4 decimal places, if needed.) (b) Based on this confidence interval, should you invest in this scheme? O No, since the interval is completely above 550. Yes, since the interval contains 550. Yes, since the interval is completely above 550. O No, since the interval contains 550. Check Save Progress Previous page Next page