Question

The bullsh sentment of individual investors was 27.6% AAr Ja mal, measures were based on a poll conducted by the American Association of Individual Investors. Assume that each bulish sentiment measure was based on a sample of 240 investors a. Develop a 95% conf dence interval for the dmerence between the bullish sentinert measures for the rost recent two weeks (to 3 de deals) February 2009). The bullsh sentment was reported to be 48.7% one week earier and 39.7% one month earter. The sentiment 296 b. Develop hypotheses so that rejection of the mull hypothesis will alow us to conclude that the most recent bullish sentiment is weaker than that of one month earlier Ho: P-Pgreater thes or equel to e conduct a hypothesis test of part (b) using ơ-01. what is your condision, we reject Ho and conclude tht builiss sentiment has declined over the one-menth

Answer 1

Q2) x and y

SUMMARY OUTPUT
Regression Statistics
Multiple R	0.98270763
R Square	0.965714286
Adjusted R Square	0.954285714
Standard Error	0.894427191
Observations	5
ANOVA
	df	SS	MS	F	Significance F
Regression	1	67.6	67.6	84.5	0.002722613
Residual	3	2.4	0.8
Total	4	70
	Coefficients	Standard Error	t Stat	P-value	Lower 95%
Intercept	0.2	0.938083152	0.213200716	0.844836846	-2.785399261
x	2.6	0.282842712	9.192388155	0.002722613	1.699868255

a)

SSE = 2.4

SST = 70

SSR = 67.6

b)

R Square

0.965714286

r^2 = 0.966

c)

Multiple R

0.98270763

r = 0.9827