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The state test scores for 12 randomly selected high school seniors are 1422 122Er g3? |:| shown on the right. Complete parts {a} through is]

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The state test scores for 12 randomly selected high school seniors are 1422 122Er g3? |:| shown on the right. Complete parts {a} through is] below. I399 T26 84!] Assume the population is normally distributed. TED MB 545 825 1448 949 {I:- [3] Find the sample mean. i: D [Round to one decimal place as needed.)

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