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Preliminary data analyses indicate that you can reasonably consider the assumptions for using pooled​t-procedures satisfied. Independent...

Preliminary data analyses indicate that you can reasonably consider the assumptions for using pooled​t-procedures satisfied. Independent random samples of 102
plots with cropland and100 plots with grassland yielded the given summary statistics for the number of native species.  

Cropland

Grassland

x overbar 1 =14.88

x overbar 2= 15.87

s 1 =4.51

s 2 = 4.75

n 1=102

n 2= 100

Determine a 95% confidence interval for the difference between the mean number of native species in the two regions.

HI, Please help with this problem (: ( can you also show me how you can do it the calculation on a TI-84?)

thanks!

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