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A state legislator wants to determine whether his voters' performance rating (0 - 100) has changed...

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A state legislator wants to determine whether his voters' performance rating (0 - 100) has changed...

A state legislator wants to determine whether his voters performance rating (0 - 100) has changed from last year to this yea

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 95 % 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) 72 75 57 60 64 82 44 47 94 82 Rating (this year) 89 56 81 76 68 65 62 50 75 68 Copy Data Step 4 of 4 : Construct the 95 % confidence interval. Round your answers to one decimal place. Tables Answer How to enter your answer Keypad Previous Step Answers Lower endpoint: Upper endpoint:

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