The average height of students at uh from an srs of 11 students gave a standard deviation of 3.0 feet. construct a 95% confidence interval for the standard deviation of the height of students at uh. assume normality for the data.

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