In: Statistics and Probability
You wish to test the following claim (Ha) at a significance
level of α=0.01.
Ho: p1 = p2
Ha: p1 ≠ p2
You obtain 49.1% successes in a sample of size n1=689 from the
first population. You obtain 57.7% successes in a sample of size
n2=691 from the second population. For this test, you should NOT
use the continuity correction, and you should use the normal
distribution as an approximation for the binomial
distribution.
What is the test statistic for this sample? (Report answer accurate
to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to
four decimal places.)
p-value =
The p-value is...
This test statistic leads to a decision to...
As such, the final conclusion is that...
The statistical software output for this problem is :
Test statistics = -3.202
P-value = 0.0014
The p-value is less than (or equal to) α
reject the null
There is sufficient evidence to warrant rejection of the claim that the first population proportion is not equal to the second population proprtion.