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. A sample of 12 SAT scores was taken and the following data was obtained: 1130, 1290, 1010, 1320, 950, 1250, 1340, 1100, 1260, 1180,

. A sample of 12 SAT scores was taken and the following data was obtained:

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

Using the descriptive statistics tool, find the sample mean and the sample standard deviation.Construct a 98% confidence interval for population mean.

n= ___Mean= Standard deviation= _

Confidence interval__________________________

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