Math Genius Needed :)
2 answers:
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Answer:
z=0.6074
Step-by-step explanation:
Given that we have to Conduct the following test at the alpha equals0.05 level of significance by determining
Test whether p 1 not equals p 2 .
Suitable hypotheses would be
B. Upper H 0 : p 1 equals 0 versus Upper H 1 : p 1 not equals 0
(Two tailed test at 5% level)
Group I II total
n 255 305 557
x 28 36 64
p 0.1098 0.1180 0.1149
p difference = -0.0082
Std error for difference =
Test statistic Z = p diff/std error
= 0.6074
p =0.2718
Since p >alpha we accept H0
z=0.6074