Question Part Points Submissions Used ua Welcome, Adriel Blackl x VA sta HWK 11

Question

Question Part Points Submissions Used ua Welcome, Adriel Blackl x VA sta HWK 11 x C Chegg study IGuided so x C D www.webassign.net/web/Student Assignment Responses last?dep 5668029 Extension Requests Print Assignment 5 7 10 Total 22 2 2/2 2/2 0.642 76520 (38.3%) Fonts Assignment submission For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the enswer. Assignment scoring Your best submission tor each queston part is used tor your score. -2 points ylntrnStat1 HW 508 XP My Notes Ask Y The following data show the number of hurricanes to directly strke a certaln country each decade. A major hurricane Is one with a strength rating of 3, 4 or 5. Total Number of Hurricanes Number of Major Hurricanes 1911 1950 15 8 1951 1960 1961-1970 13 6 1971 1980 12 15 5 1981 1990 191 2000 14 5 2001-2004 Using only completed decades (1941 2000), calculate the least squares line for the number of major hurricanes expected based on the total number of hunricanes. (Round your answers to three decimal places.) Additional Materials Section 12.1 Submit Answer Save Progress Practice Another Verson 8:16 PM a Type here to search 5/8/20

Explanation / Answer

The regression equation is

y=a+bx

from Excel

The fitted regression model is

y=-2.255+ 0.5707(Total Number of Hurricanes)

SUMMARY OUTPUT Regression Statistics Multiple R 0.941983 R Square 0.887331 Adjusted R Square 0.864797 Standard Error 1.111817 Observations 7 ANOVA df SS MS F Significance F Regression 1 48.67645 48.67645 39.37786 0.001509 Residual 5 6.180688 1.236138 Total 6 54.85714 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% Intercept -2.25526 1.402732 -1.60776 0.168799 -5.8611 1.350579 -5.8611 1.350579 Total Number of Hurricanes 0.570746 0.090953 6.275178 0.001509 0.336944 0.804548 0.336944 0.804548

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