Question: Preliminary data analyses indicate that you can reasonably consider the assumptions for using pooled Cropland Grassland t-procedures satisfied. Independent random samples of 103 plots with

for using pooled Cropland Grassland t-procedures satisfied. Independent random samples of 103

Preliminary data analyses indicate that you can reasonably consider the assumptions for using pooled Cropland Grassland t-procedures satisfied. Independent random samples of 103 plots with cropland and 99 plots with grassland X1 = 14.65 X2 = 15.11 yielded the given summary statistics for the number of native species. S1 = 4.81 S, = 4.91 n1 = 103 n2 = 99 Determine a 95% confidence interval for the difference between the mean number of native species in the two regions. . . . The 95% confidence interval is from to (Round to three decimal places as needed.)

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