b T TTEIEIG . Lesson CertfrMQdeQuesti . X Inbox - learn.hawkeslearning.com/Portal/Lesson/lesson_certify#! e- Save & Exit Certify blayrocke542@gmaiI.cov X Chegg Search Lesson: 9.3 Comparing Two Population Me... Course Hero e/ 2e Correct LORETTA STONE Question 3 of 10, Step 2 of 4 A state legislator wants to determine whether his voters' performance rating (0 - 100) has changed from last year to this year. The following table shows the legislator's performance from the same ten randomly selected voters for last year and this year. use this data to find the 90% confidence interval for the true difference between the population means. Assume that the populations of voters' performance ratings are normally distributed for both this year and last year. Rating (last year) Rating (this year) 77 50 89 94 50 75 44 55 54 45 51 65 66 94 42 67 94 91 44 46 Copy Data step 2 of 4 . Calculate the sample standard deviation of the paired differences. Round your answer to six decimal places. Tables Keypad Answer How to enter your answer (opens in new window) Keyboard Shortcuts Previous Step Answers Submit Answer @ 2021 Hawkes Learning