1. Math
2. Statistics And Probability
3. preliminary data analyses indicate that the assumptions for using pooled...

# Question: preliminary data analyses indicate that the assumptions for using pooled...

###### Question details

Preliminary data analyses indicate that the assumptions for using pooled​ t-procedures are satisfied. Independent random samples of 102 plots with cropland and 100 plots with grassland yielded the given summary statistics for the number of species of bird. At the 1​% significance​ level, do the data provide sufficient evidence to conclude that a difference exists in the mean number of species in the two​ regions? Cropland Grassland x overbar 1 = 14.51 x overbar 2 = 15.33 s 1 = 4.62 s 2 = 4.57 n 1=102 n 2=100 Determine the critical value or values.