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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

Question 7

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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Two samples each of size 20 are taken from independent populations assumed to be normally distributed with equal variances.The first sample has a mean of 43.5 and standard deviation of 4.1 while the second sample has a mean of 40.1 and standard deviation of 3.2.A researcher would like to test if there is a difference between the population means at the 0.05 significance level.
-State the null hypothesis.


A) H0 : Px = Py
B) H0 : THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Two samples each of size 20 are taken from independent populations assumed to be normally distributed with equal variances.The first sample has a mean of 43.5 and standard deviation of 4.1 while the second sample has a mean of 40.1 and standard deviation of 3.2.A researcher would like to test if there is a difference between the population means at the 0.05 significance level. -State the null hypothesis. A) H<sub>0</sub> : P<sub>x</sub> = P<sub>y</sub> B) H<sub>0</sub> : = C) H<sub>0</sub> : μ<sub>x</sub> - μ<sub>y</sub> = 3.4 D) H<sub>0</sub> : μ<sub>x</sub> - μ<sub>y</sub> = 0
=
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Two samples each of size 20 are taken from independent populations assumed to be normally distributed with equal variances.The first sample has a mean of 43.5 and standard deviation of 4.1 while the second sample has a mean of 40.1 and standard deviation of 3.2.A researcher would like to test if there is a difference between the population means at the 0.05 significance level. -State the null hypothesis. A) H<sub>0</sub> : P<sub>x</sub> = P<sub>y</sub> B) H<sub>0</sub> : = C) H<sub>0</sub> : μ<sub>x</sub> - μ<sub>y</sub> = 3.4 D) H<sub>0</sub> : μ<sub>x</sub> - μ<sub>y</sub> = 0
C) H0 : μx - μy = 3.4
D) H0 : μx - μy = 0

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