Question

Conduct the following test at the alpha equals0.05 level of significance by determining​

Answer 1

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 = $\sqrt{\frac{0.1149*0.8851}{557} } \\=0.0135$

Test statistic Z = p diff/std error

= 0.6074

p =0.2718

Since p >alpha we accept H0

z=0.6074