We want to investigate the correlation betweenconcentration of Se (Selenium) in the teeth andits concentration in the liver in 20 Beluga240220Whales.We suspect that the higher theconcentration in the liver, the higher theconcentration in the teeth. A plot of the data isgiven at right, and the following summarystatistics are given for these data:200180160x = 20.68 Sx= 13.45y = 156.60Sy= 36.06140Se = 31.25Before actually computing its value (that is, by justlooking at the scatterplot), how do we know thatr > 0 (rather than r = 0 or r < 0)?r =0.5412010203040Liver Se (ug/g dry wt)Tooth Se (ng/g dry wt) d) Estimate the approximate expected Tooth Se if Liver Se were 30.e) Test the hypotheses Ho: B1 = 0, H4: B1 # 0 by finding a 95% confidence interval for B1.%3D(f) Test the hypotheses Ho:p = 0, Ha: P ± 0 using a t Test. Use a = 0.05.

Formula Used: Simple linear regression: Y = a + bX Where, b is slope a is intercept Test statistic…

We want to investigate the correlation between concentration of Se (Selenium) in the teeth and its concentration in the liver in 20 Beluga Whales. 240 220 We suspect that the higher the concentration in the liver, the higher the concentration in the teeth. A plot of the data is given at right, and the following summary statistics are given for these data: 200 180 160 x = 20.68 Sx = 13.45 y = 156.60 Sy = 36.06 140 r = 0.54 Se = 31.25 120 Before actually computing its value (that is, by just looking at the scatterplot), how do we know that r > 0 (rather than r = 0 or r< 0)? 10 20 30 40 Liver Se (ug/g dry wt) Tooth Se (ng/g dry wt)

We want to investigate the correlation between concentration of Se (Selenium) in the teeth and its concentration in the liver in 20 Beluga Whales. 240 220 We suspect that the higher the concentration in the liver, the higher the concentration in the teeth. A plot of the data is given at right, and the following summary statistics are given for these data: 200 180 160 x = 20.68 Sx = 13.45 y = 156.60 Sy = 36.06 140 r = 0.54 Se = 31.25 120 Before actually computing its value (that is, by just looking at the scatterplot), how do we know that r > 0 (rather than r = 0 or r< 0)? 10 20 30 40 Liver Se (ug/g dry wt) Tooth Se (ng/g dry wt)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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