تم الحل ✓
categoryإحصاء
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
Refer to the data below which contains the percentage change (X) in a stock market index over the first five trading days of the year and percentage change (Y) in the
index over the whole year. Complete parts a and b.
(X)
(Y)
1.4
0.1
-0.2
2.9
2.1
-1.8
-1.3
5.7
-1.5
1.4
1.5
14.9
-9.2
19.7
20.3
-3.6
27.8
22.5
2.2
11.7
26
-4.2
-4.7
20.3
-0.4
-0.2
a. Estimate the linear regression of Y on X.
(Round to four decimal places as needed.)
b. Provide interpretations of the intercept and slope of the sample regression line.
% over the whole year. If there is a zero percent
For a one percent
over the first five trading days of the year, estimates would predict a change of
change over the first five trading days of the year, estimates would predict a change of
% over the whole year.
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