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Consider the following hypothesis statement using alphaequals= 0.01 and data from two independent samples. Assume the population variances are not equal and the populations are
Consider the following hypothesis statement using alphaequals=0.01 and data from two independent samples. Assume the population variances are not equal and the populations are normally distributed. Complete parts a and b.
H0:12=0
H1:120
x overbar 1=115.3 x overbar 2=122.0
s1=25.1 s2=15.3
n1=15 n2=18
The test statistic is
The critical value is
the p-value is
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