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.: Test 1 Material-XLS Test 1 Formul -) cl Not Secure www.webassign.net/web/StudentiAssignment-Responses/last?dep-17940690 ::: Apps Bookmarks D UGA -k UGA ELC @UGA Mal D GEOG UGA webAssign e StatCrunch Study Soup ENST D EMST Sche The table shows gestation period (in days) and life expectancy (in years) in several animals Animal GestationLife Expectancy 13.3 624 12 Simple linear regression results Sample size: 12 R (Correlation coefficient)-0.97748787 R-sq 0.95548254 Estimate of error standard deviation: 3.5075723 Estimate Std. Err. OF T-Stat Pvalue 1.475 0.058 10 2.8164 0.0183 10 14.6503 0.0001 Slope 0.086 Analysis of variance table for regression model Source DF SS Model 1 Error 10 1 Total 11 P-valu 2640.6185 2640.6185 214.63098 0.0001 23.0306 12.303o 2763.6492 (a) If gestation is used to predict ife expectancy, then the horizontal axis would be labeled o Type of Animal Life Expectancy Gestation Peried (b) The relationship between gestation period and ife expectancy appears to be * positive negative 0Explanation / Answer
a) Gestation is used for prediction means it is independent value as X-axis.
Y-axis or horizontal value will be Life expectancy.
b) The relation between two variables is positive. Because slope is positive(0.086)
c) Y'= Intercept+ Slope*X
Life expectancy= 4.153* 0.086*Gestation
d) Yes, the least square Regression always uses for prediction model
e) Life expectancy= 4.153* 0.086*Gestation
Gestation= 498
Life expectancy= 4.153* 0.086*498 = 46.981
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