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Test 3 Question 16 of 25 (1 point) | Question Attempt 1 of 1 Time Remaining: 2:34-06 . 11 12 13 14 15 16 17

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Test 3 Question 16 of 25 (1 point) | Question Attempt 1 of 1 Time Remaining: 2:34-06 . 11 12 13 14 15 16 17 18 19 20 21 22 Suppose that a random sample of 20 adults has a mean score of ?1 on a standardized personality test, with a standard deviation of 2. (A higher score indicates a more personable participant.) If we assume that scores on this test are normally distributed, find a 90 %% confidence Interval for the mean score of all takers of this test. Then find the lower limit and upper limit of the 93 confidence Interval. Carry your Intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: X 5 ? Upper limit

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