Question

In: Statistics and Probability

You wish to test the following claim (H1H1) at a significance level of α=0.10α=0.10.       Ho:p1=p2Ho:p1=p2       H1:p1≠p2H1:p1≠p2...

You wish to test the following claim (H1H1) at a significance level of α=0.10α=0.10.

      Ho:p1=p2Ho:p1=p2
      H1:p1≠p2H1:p1≠p2

You obtain a sample from the first population with 412 successes and 342 failures. You obtain a sample from the second population with 274 successes and 179 failures.

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...

  • less than (or equal to) αα
  • greater than αα

This test statistic leads to a decision to...

  • reject the null
  • accept the null
  • fail to reject the null

As such, the final conclusion is that...

  • There is sufficient evidence to warrant rejection of the claim that the first population proportion is not equal to the second population proprtion.
  • There is not sufficient evidence to warrant rejection of the claim that the first population proportion is not equal to the second population proprtion.
  • The sample data support the claim that the first population proportion is not equal to the second population proprtion.
  • There is not sufficient sample evidence to support the claim that the first population proportion is not equal to the second population proprtion.

Solutions

Expert Solution

The statistical software output for this problem is :

Test statistics = 5.306

P-value = 0.0000

The p-value is less than (or equal to) α .

This test statistic leads to a decision to 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 proportion.


Related Solutions

You wish to test the following claim (H1H1) at a significance level of α=0.01       Ho:p1=p2Ho:p1=p2       H1:p1...
You wish to test the following claim (H1H1) at a significance level of α=0.01       Ho:p1=p2Ho:p1=p2       H1:p1 You obtain 52.4% successes in a sample of size n1=563 from the first population. You obtain 53.8% successes in a sample of size n2=797 from the second population. 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...
You wish to test the following claim (H1H1) at a significance level of α=0.02α=0.02.       Ho:p1=p2Ho:p1=p2       H1:p1>p2H1:p1>p2...
You wish to test the following claim (H1H1) at a significance level of α=0.02α=0.02.       Ho:p1=p2Ho:p1=p2       H1:p1>p2H1:p1>p2 You obtain 113 successes in a sample of size n1=450n1=450 from the first population. You obtain 91 successes in a sample of size n2=399n2=399 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 critical value for this test? (Report answer accurate to...
You wish to test the following claim (H1H1) at a significance level of α=0.005α=0.005.       Ho:p1=p2Ho:p1=p2       H1:p1>p2H1:p1>p2...
You wish to test the following claim (H1H1) at a significance level of α=0.005α=0.005.       Ho:p1=p2Ho:p1=p2       H1:p1>p2H1:p1>p2 You obtain a sample from the first population with 334 successes and 359 failures. You obtain a sample from the second population with 240 successes and 359 failures. 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...
You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.       Ho:p1=p2Ho:p1=p2       Ha:p1>p2Ha:p1>p2...
You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.       Ho:p1=p2Ho:p1=p2       Ha:p1>p2Ha:p1>p2 You obtain 338 successes in a sample of size n1=374n1=374 from the first population. You obtain 535 successes in a sample of size n2=624n2=624 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...
You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.       Ho:p1=p2Ho:p1=p2       Ha:p1>p2Ha:p1>p2...
You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.       Ho:p1=p2Ho:p1=p2       Ha:p1>p2Ha:p1>p2 You obtain 338 successes in a sample of size n1=374n1=374 from the first population. You obtain 535 successes in a sample of size n2=624n2=624 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...
You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.       Ho:p1=p2Ho:p1=p2       Ha:p1<p2Ha:p1<p2...
You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.       Ho:p1=p2Ho:p1=p2       Ha:p1<p2Ha:p1<p2 You obtain a sample from the first population with 153 successes and 596 failures. You obtain a sample from the second population with 71 successes and 174 failures. 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...
You wish to test the following claim (H1H1) at a significance level of α=0.10α=0.10. For the...
You wish to test the following claim (H1H1) at a significance level of α=0.10α=0.10. For the context of this problem, d=x2−x1d=x2-x1 where the first data set represents a pre-test and the second data set represents a post-test.       Ho:μd=0Ho:μd=0       H1:μd≠0H1:μd≠0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: pre-test post-test 36.3 -5.6 40.9 14.2 40.2 -21.3 52.1 8.3 45.5 24.7 33.6 15.4 56.9 10.4...
You wish to test the following claim (Ha) at a significance level of α=0.10.       Ho:p1=p2...
You wish to test the following claim (Ha) at a significance level of α=0.10.       Ho:p1=p2       Ha:p1<p2 You obtain 96% successes in a sample of size n1=375 from the first population. You obtain 99.1% successes in a sample of size n2=222 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...
You wish to test the following claim (Ha) at a significance level of α=0.10.       Ho:p1=p2...
You wish to test the following claim (Ha) at a significance level of α=0.10.       Ho:p1=p2       Ha:p1<p2 You obtain a sample from the first population with 193 successes and 355 failures. You obtain a sample from the second population with 303 successes and 464 failures. 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 critical value for this test? (Report answer...
1) You wish to test the following claim (H1) at a significance level of α=0.05       Ho:p1=p2...
1) You wish to test the following claim (H1) at a significance level of α=0.05       Ho:p1=p2       H1:p1<p2 You obtain 23 successes in a sample of size n1=268 from the first population. You obtain 79 successes in a sample of size n2=465 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 critical value for this test? (Report answer accurate...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT