Business statistics regression; Below is a histogram for the Ireland returns from the countries dataset. There are n=107 observations for this variable.
(I) -.16 (II) -.051 (III) .012 (IV) .083
(I)0.01 (II) .06 (III) .15 (IV) -.05
Below is a scatterplot of the Ireland returns vs. the UK returns. There are n=107 observations.
( I ) .68 (II) -2.3 (III) .17 (IV) .97
( I ) 0.001 (II) .1 (III) .02 (IV) .05
Suppose we run a regression using these returns with y= Ireland (outcome variable) and x=UK (predictor variable)
SST = SSR + SSE
SSR = S( )2
SSE = S(y )2
SST = SSyy= S(y )2
SSxy= S(x )(y )
SSxx= S(x )2
r =
SSe = , SSE =(1-R2) = SST (Se = standard deviation of errors)
Sb=
†=
( I ) -.3 (II) .25 (III) .8 (IV) 1.3
( I ) .003 (II) -.12 (III) .18 (IV) .09
a. Since the histogram suggests that the distribution is approximately normal, the mean would lie between 0-0.03.
Hence correct option is (III) 0.012
b. Since, this is normal, standard deviation can be roughly calculated as Range/6.
Hence, the correct option is (II) 0.06
c. Scatter plot shows fairly strong correlation.
Hence, the correct option is (I) 0.68
d. Since, this is also almost normal, standard deviation can be roughly calculated as Range/6.
Hence, the correct option is (III) 0.02
Business statistics regression; Below is a histogram for the Ireland returns from the countries dataset. There...
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atalog The owner of Showtime Movie Theaters, Inc, le regression analysis to predict gross revenue as a function of television advertising and newspaper advertising Weekly Revende (11000) Televison Advertising (1000) Newspaper Mdvertising (1000) The estimated regression equation was 87+ 1.2 - 0.1 The computer solution provided SST - 34,SSR - 22.008 a. Comoute Re (to 3 decimals). 0.977 Compute to decimals). b. when television advertising was the only independent 0.31 and 0. Are the multiple regression analysis results preferable? pps.ng.cengage.com...
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