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9) The SAT scores for 12 randomly selected seniors at a particular high school are given...

9)

The SAT scores for 12 randomly selected seniors at a particular high school are given below. Assume that the SAT scores for seniors at this high school are normally distributed.

1,062 1,057 1,363 1,042 813 833
902 1,136 617 1,040 1,111 1,080

a) Find a 95% confidence interval for the true mean SAT score for students at this high school.

b) Provide the right endpoint of the interval as your answer.

Round your answer to the nearest whole number.

Math   Statistics-And-Probability   
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