Use the data set to (a) Find the sample mean, (b) Find the sample standard deviation, and

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Use the data set to

(a) Find the sample mean, 

(b) Find the sample standard deviation, and 

(c) Construct a 99% confidence interval for the population mean. Assume the population is normally distributed.


The SAT scores of 12 randomly selected high school seniors

1130 1290 1010 1320 |1340 1100 1260 1180 1470 950 1250 920

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