Question 4 Tries remaining: 3 Marked out of 3.00 Flag question Your investment advisor proposes a...
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Question 4 Tries remaining: 3 Marked out of 3.00 Flag question Your investment advisor proposes a monthly income investment scheme which promises a variable income each month. You will invest in it only if you are assured an average monthly income of at least 720 dollars. Your advisor also tells you that, for the past 46 months, the scheme had incomes with an average value of 754 dollars and a standard deviation of 88 dollars. (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? No, since the interval is completely above 720. No, since the interval contains 720. Yes, since the interval is completely above 720. Yes, since the interval contains 720. Check Question 4 Tries remaining: 3 Marked out of 3.00 Flag question Your investment advisor proposes a monthly income investment scheme which promises a variable income each month. You will invest in it only if you are assured an average monthly income of at least 720 dollars. Your advisor also tells you that, for the past 46 months, the scheme had incomes with an average value of 754 dollars and a standard deviation of 88 dollars. (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? No, since the interval is completely above 720. No, since the interval contains 720. Yes, since the interval is completely above 720. Yes, since the interval contains 720. Check
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