Consider the following hypothesis test: H0: p .8 Ha: p > .8 A sample of 500...
Consider the following hypothesis test:
H0: p .8
Ha: p > .8
A sample of 500 provided a sample proportion of .853.
16. Determine the standard error of the proportion.
17. Compute the value of the test statistic.
18. Determine the p-value; and at a 5% level, test the above the hypotheses.
Homework Answers
16. Standard error of proportion
= 0.0179
17. Test statistic
z = 2.96
18. This is a right tailed test so:
p - Value = P(z > 2.96) = 0.0015
Since p - value is less than 0.05, we reject the null hypothesis and conclude that p > 0.8
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