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A distribution of values is normal with a mean of 170 and a standard deviation of 17. From this distribution, you are drawing samples of size 34.

Find the interval containing the middle-most 80% of sample means: Incorrect

Enter your answer using interval notation. In this context, either inclusive or exclusive intervals would be acceptable. Your numbers should be accurate to 1 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

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