Based on random samples of river heights, oceanographers estimate that 4,800 cubic kilometers (km) of freshwater is discharged into the Arctic Ocean annually. The estimate has a margin of
error of 240 km at the 90% confidence level. Which of the following is the most reasonable
claim about the volume of freshwater discharged annually into the Arctic Ocean?

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Which of the following is correct interpretation of the expression -4+13

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125