I\'m confused on questions B), C), D), E), F), G) and H). Any guidence would be
ID: 3270405 • Letter: I
Question
I'm confused on questions B), C), D), E), F), G) and H). Any guidence would be great!
DESIRE 11 13 11 11 18 8 10 16 10 15 12 17 9 11 16 8 9 14 14 14 15 13 15 11 12 18 10 14 19 11 13 13 15 7 11 12 12 9 8 9 13 11 10 13 20 15 14 11 11 15 15 14 16 15 13 16 13 12 5 9 14 12 15 18 11 12 10 12 12 9 12 13 19 9 6 13 10 14 14 12 16 18 14 14 10 11 7 9 13 12 12 14 14 10 11 9 14 8 5 12 7 15 16 14 16 17 9 10 11 14 10 15 11 17 8 6 10 9 16 18 18 13 16 15 14 13 14 7 13 11 14 14 16 9 14 13 13 11 17 11 17 12 13 10 11 13 13 18 16 14 7 11 12 14 12 14 15 16 13 8 18 9 8 18 14 18 13 9 14 6 GENDER 0 0 0 1 0 1 1 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 1 1 0 1 0 0 0 0 1 0 1 1 0 0 0 1 1 0 0 1 0 0 1 0 1 1 0 0 1 0 0 0 0 0 0 1 1 0 1 0 0 1 1 1 0 0 1 0 0 0 1 1 1 1 0 0 1 0 0 1 0 1 1 1 1 0 0 0 0 0 0 1 1 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 1 0 0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 1 1 1 0 1 0 0 0 0 1 0 1 1 0 1 0 0 1 0 1 SELFESTM 24 20 25 22 8 33 40 19 31 21 31 15 40 24 16 37 29 31 16 14 25 12 29 30 24 27 24 15 5 20 19 17 27 38 35 27 26 34 37 36 38 18 30 19 24 36 20 40 29 25 15 31 17 12 31 17 20 22 40 33 8 25 21 27 23 28 32 28 17 30 27 30 16 34 29 28 24 27 18 31 22 16 32 23 25 19 38 31 27 20 21 21 28 22 34 25 18 35 36 22 27 23 28 23 31 23 33 35 10 15 26 7 15 15 27 30 27 22 28 25 19 4 30 22 25 24 25 30 22 35 27 19 21 27 26 28 18 18 20 35 20 40 36 19 27 12 15 20 13 28 33 26 30 35 33 19 17 27 30 32 27 30 27 15 36 25 26 13 20 27 BODYSAT 3 3 4 9 1 7 9 3 3 1 5 1 9 1 1 8 9 6 1 1 4 1 2 9 6 3 6 1 1 1 1 2 5 9 8 3 3 6 8 8 7 1 9 1 3 9 2 9 5 3 1 8 2 1 3 1 2 2 9 9 1 5 3 3 7 8 9 4 2 8 5 4 1 9 9 5 8 2 1 9 3 1 9 5 7 3 9 7 3 1 3 1 7 4 9 8 1 7 9 3 6 4 4 3 4 1 3 5 1 1 4 1 1 1 8 9 4 6 4 1 1 1 6 6 3 5 1 9 4 9 1 7 1 7 1 1 2 5 1 8 1 9 8 2 4 1 1 1 1 4 7 7 9 5 8 2 1 4 2 9 2 8 9 1 9 3 4 5 3 8 IMPREAL 4 4 5 4 6 6 6 6 2 4 3 4 6 3 4 4 4 6 3 4 5 1 7 5 5 6 6 3 3 2 2 3 3 5 5 6 7 3 5 1 3 3 5 4 4 5 3 4 2 5 2 3 2 4 4 4 5 3 4 5 4 1 4 4 4 5 4 1 1 2 3 3 5 4 4 5 2 5 4 5 4 6 4 7 5 4 3 2 5 2 3 5 4 4 4 5 3 2 5 3 3 4 6 4 4 3 4 5 3 2 3 4 2 4 5 4 2 3 4 5 5 3 2 4 5 4 4 3 3 4 3 4 3 5 2 3 6 3 6 5 4 5 5 1 5 2 5 5 5 5 4 4 4 4 1 5 3 7 6 7 5 6 3 5 6 5 5 6 2 3Explanation / Answer
b) go to data -> data analysis
select regression and select data
b1 = -2.186485
b2^ = +0.047941044
b3^ = -0.322331992 ,
b4^ = 0.493103102
c) beta coefficient is interpreted as if we increase dependent variable by 1 unit , then change in y will be bi units
for dummy variable like gender , the expected difference in male and female is b1
d) since significance F = 9.188-10^(-24) << 0.01
hence the overall model is significant
e)
t-stat =
p-value for 1-sided test = 0.02599799/2/2 = 0.013 < 0.05
hence we reject the null and conclude that the claim is right
f) R^2 =
this means that 49.755 % of variablity in y is explaiend by the model
g) when x1 =0 , x2 = 7 , x3 = 2 ,x4 = 5
y^ =
h) standard error =
Please rate my solution
SUMMARY OUTPUT Regression Statistics Multiple R 0.705378825 R Square 0.497559287 Adjusted R Square 0.485378906 Standard Error 2.250865082 Observations 170 ANOVA df SS MS F Significance F Regression 4 827.8332886 206.9583221 40.84923869 9.18861E-24 Residual 165 835.9549467 5.066393616 Total 169 1663.788235 Coefficients Standard Error t Stat P-value Lower 95% Intercept 14.01065899 0.775344345 18.07024078 5.87941E-41 12.47978374 GENDER -2.18648505 0.676629489 -3.231436236 0.001487052 -3.522453189 SELFESTM -0.047941044 0.036690663 -1.306627903 0.193157392 -0.120384763 BODYSAT -0.322331992 0.143481325 -2.24650833 0.02599799 -0.605628068 IMPREAL 0.493103102 0.127393292 3.870714813 0.000156056 0.241571974Related Questions
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