MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:b. Determine the critical value(s) for the hypothesis test.
Round to three decimal plaçes if necessary
c. Conclude whether to reject the null hypothesis or not based on the test statistic.
o Reject
o Fail to Reject
Transcribed Image Text:A random sample of n = 18 securities in Economy A produced mean returns of
X1 = 5.5% with s = 2.3% while another random sample of n2 = 19 securities in
Economy B produced mean returns of x2 = 4.8% with s2 2.5%. At a = 0.01, can
we infer that the returns differ significantly between the two economies?
%3D
%3D
%3D
Assume that the samples are independent and randomly selected from normal
populations with equal population variances (o1? = 02²).
T-Distribution Table
a. Calculate the test statistic.
t =
0.000
Round to three decimal places if necessary
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