Answer Happy

PLEASE EXPLAIN HOW I WOULD DO THIS ON A TI-84CALCULATOR. THANK YOU!
(3 points) Starting salaries of 120 college graduates who have taken a statistics course have a mean of $42,583. Suppose the distribution of this population is approximately normal and has a standard deviation of $9,327. Using an 81% confidence level, find both of the following: (NOTE: Do not use commas or dollar signs in your answers.) (a) The margin of error: (b) The confidence interval for the mean μ : <μ< Note: You can earn partial credit on this problem. You have attempted this problem 1 time. Your overall recorded score is 67%. You have unlimited attempts remaining. Page generated at 07/12/2022 at 12:20am CDT WeBWork 1996-2019| theme: math4 | ww_version: WeBWorK-2.14 | pg_version PG-2.14| The WeBWork Project