ZuoTi.Pro
Question

5 What is the correct decision for a test of the difference in two proportions if...

5

What is the correct decision for a test of the difference in two proportions if the test statistic is 1.99, n1 = 150, n2 = 225, and α = .02?

Reject H0

Don't Reject H0

Reject HA

Don't Reject HA
math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

For difference in two proportion test,

two tailed critical value at 0.02 level = -2.326 , 2.326

Since test statistics 1.99 falls in non-rejection region, (that is falls between -2.326 and 2.326) ,

We do not have sufficient evidence to reject H0.

Answer: Don't reject H0

0 0
Add a comment
Know the answer?
Add Answer to:
5 What is the correct decision for a test of the difference in two proportions if...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Find the sample proportions and test statistic for equal proportions. (a-1) Dissatisfied workers in two companies:...

    Find the sample proportions and test statistic for equal proportions. (a-1) Dissatisfied workers in two companies: x1 = 46, n1 = 100, x2 = 36, n2 = 100, α = .05, two-tailed test. (Round your answers to 4 decimal places. Use Excel to calculate the p-value.)   p1      p2      zcalc      p-value      zα/2 +/-    (a-2) Choose the appropriate hypotheses. a. H0:π1 – π2= 0 vs. H1:π1 – π2 ≠ 0. Reject H0 if zcalc < –1.96 or zcalc...

  • Find the sample proportions and test statistic for equal proportions. (a-1) Dissatisfied workers in two companies:...

    Find the sample proportions and test statistic for equal proportions. (a-1) Dissatisfied workers in two companies: x1 = 46, n1 = 100, x2 = 36, n2 = 100, α = .05, two-tailed test. (Round your answers to 4 decimal places. Use Excel to calculate the p-value.) p1 p2 zcalc p-value zα/2 +/- (a-2) Choose the appropriate hypotheses. a. H0:π1 – π2 = 0 vs. H1:π1 – π2 ≠ 0. Reject H0 if zcalc < –1.96 or zcalc > 1.96 b....

  • In a test for the difference between two proportions, the sample sizes were n1=68 and n2=76...

    In a test for the difference between two proportions, the sample sizes were n1=68 and n2=76 , and the numbers of successes in each sample were x1=41 and x2=25 . A test is made of the hypothesis Ho:p1=p2 versus H1:P1>p2 are the assumptions satisfied in order to do this test?Explain. B) Find the test statistics value C) Can you reject the null hypothesis at the a=0.01 significance level? Use Ti-84 for calculations please.

  • Say a 95% confidence interval for P2 - P2, the difference between two proportions, is (0.152,...

    Say a 95% confidence interval for P2 - P2, the difference between two proportions, is (0.152, 0.392). This indicates that the difference between the two proportions is not significant. A) True-- Yes OB) False--No O C) Can't tell without the data Question 7 (1 point) According to National Eye Institute (NEI), in 2010, 61% of Americans with cataract were women and 39% were men. Suppose you want to conduct a test for the difference in proportions to test whether females...

  • Given two independent random samples with the following results: n1= 658    n2 = 550 x1=362     ...

    Given two independent random samples with the following results: n1= 658    n2 = 550 x1=362      x2=194 Can it be concluded that there is a difference between the two population proportions? Use a significance level of α=0.01 for the test. Step 1 of 5: State the null and alternative hypotheses for the test. Step 2 of 5: Find the values of the two sample proportions, pˆ1 and pˆ2. Round your answers to three decimal places. Step 3 of 5: Compute...

  • Suppose you want to test the claim that μ1 = μ2. Two samples are randomly selected...

    Suppose you want to test the claim that μ1 = μ2. Two samples are randomly selected from normal populations. The sample statistics are given below. Assume that σ 2 over 1 ≠ σ 2 over 2 . At a level of significance α=0.01, when should you reject H0? n1 = 25 n2 = 30 1 = 21 2 = 19 s1 = 1.5 s2 = 1.9 A. Reject H0 if the standardized test statistic is less than -2.492 or greater...

  • Consider the following hypothesis test. H0: μ1 − μ2 = 0 Ha: μ1 − μ2 ≠...

    Consider the following hypothesis test. H0: μ1 − μ2 = 0 Ha: μ1 − μ2 ≠ 0 The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 n1 = 80 n2 = 70 x1 = 104 x2 = 106 σ1 = 8.4 σ2 = 7.2 (a) What is the value of the test statistic? (Round your answer to two decimal places.) (b) What is the p-value? (Round your answer to four decimal places.)...

  • Given two independent random samples with the following results: n1=305 x1=127 n2=194 x2=124 Can it be...

    Given two independent random samples with the following results: n1=305 x1=127 n2=194 x2=124 Can it be concluded that there is a difference between the two population proportions? Use a significance level of α=0.05 for the test. State the null and alternative hypotheses for the test. Find the values of the two sample proportions, pˆ1 and pˆ2. Round your answers to three decimal places. Compute the weighted estimate of p, p‾‾. Round your answer to three decimal places. (p bar) Compute...

  • Two random samples are taken, one from among first-year students and the other from among fourth-year...

    Two random samples are taken, one from among first-year students and the other from among fourth-year students at a public university. Both samples are asked if they favor modifying the student Honor Code. A summary of the sample sizes and number of each group answering yes'' are given below: First-Years (Pop. 1): Fourth-Years (Pop. 2): n 1 =84, n 2 =87, x 1 =34 x 2 =37 First-Years (Pop. 1):n1=84,x1=34Fourth-Years (Pop. 2):n2=87,x2=37 Is there evidence, at an α=0.055 α=0.055 level...

  • Suppose you want to test the claim that µ1 < µ2. Two samples are randomly selected...

    Suppose you want to test the claim that µ1 < µ2. Two samples are randomly selected from each population. The sample statistics are given below. At a level of significance of α = 0.05, when should you reject H0? n1 = 35              n2 = 42 x̅1 = 29.05         x̅2 = 31.6 s1 = 2.9              s2 = 2.8 Suppose you want to test the claim that u1<p2. Two samples are randomly selected from each population. The sample statistics are given...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT