Using the data shown in the accompanying contingency table, test whether the population proportions differ at the = 0.05 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume that the samples are dependent and were obtained randomly. Click the icon to view the contingency table. (a) Let p, represent the proportion of success for treatment A and p, represent the proportion of success for treatment B. What are the null and alternative hypotheses? OA. Ho: P1 = P2 H1: P1 #P2 O B. Ho: P1 =P2 H1: P1 > P2 O C. Ho: P1 =P2 H1: P1

Using the data shown in the accompanying contingency table, test whether the population proportions differ at the = 0.05 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume that the samples are dependent and were obtained randomly. Click the icon to view the contingency table. (a) Let p, represent the proportion of success for treatment A and p, represent the proportion of success for treatment B. What are the null and alternative hypotheses? OA. Ho: P1 = P2 H1: P1 #P2 O B. Ho: P1 =P2 H1: P1 > P2 O C. Ho: P1 =P2 H1: P1

Name: Using the data shown in the accompanying contingency table, test whet
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Using the data shown in the accompanying contingency table, test whether the population proportions differ at the a = 0.05 level of significance by determining (a) thenull and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assu

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Women athletes at UČLA have a long-term graduation rate of 96%. Over the past several years, a random sample of 40 women athletes at UCLA showed that 37 eventually graduated. Do the data indicate that the population proportion of women athletes who graduate from UCLA is now less than 96%? Use a 5% significance level. You must identify the following in your answer in order to receive credit. Upload your response 1. State Ho and H1 2. Find the test statistic z (Round to two decimal places) 3. Find the p-value (Round to four decimal places) 4. Indicate the calculator key you used. 5. Do you reject Ho or fail to reject Ho? 6. State your conclusion: Upload Choose a File « Previous Next
A researcher wants to select a sample from a population with a mean (µ)= 60 and administer a treatment to individuals in the sample. He thinks the treatment will help improve scores. a. State the hypotheses for a one-tailed test. b. For a one-tailed test, would the critical region be located in the positive or right-hand tail of the distribution, or in the negative or left-hand tail of the distribution?
During the 1990s, the fatality rate for lung cancer was 80 per 100,000 people. After the turn of the century and the establishment of newer treatments and adjustment in public health advertising, a random sample of 10,000 people exhibits only six deaths due to lung cancer. Test at the 0.05 significance level whether that data are proof of a reduced fatality rate for lung cancer. b. Make the decision rule. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) c. Evaluate the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)
In each situation, find the value of the t-statistic for the sample mean x and give the value of degrees of freedom (df). (a) x = 6, µ = 12, o = 24, n = 25 t = df = (b) x = 18, u = 12, o = 24, n = 25 t = df =
A dietitian wishes to see if a person's cholesterol level will change if the diet is supplemented by a certain mineral. Seven subjects were pretested and then took the mineral supplement for a six-week period. The results are shown below in the table. Use a paired samples t-chart at a = 0.01 significance level to see difference (Before - After) between the cholesterol levels. State the hypotheses and conclusion. Also, conduct a 99% confidence interval. Subject 1 Before 210 After 190 2 205 170 3 208 210 4 192 188 5 178 173 6 244 228 7 211 198
A teacher would like to determine if quiz scores improve after completion of a worksheet. The students take a pre-quiz before the worksheet and then another quiz after the worksheet. (Pre-quiz score - Post-quiz score) Assume quiz scores are normally distributed. The grades for each quiz are given below. Use a significance level of a = 0.05. H₂: Hd = 0 Ha: Hd <0 pre-quiz 12 16 17 16 11 15 12 7 15 13 post-quiz 13 16 15 16 14 15 13 9 14 15 What is the test statistic? test statistic = (Report answer accurate to 2 decimal places.) What is the p-value for this sample? p-value= (Report answer accurate to 3 decimal places.) The correct decision is to Select an answer Conclusion: Select an answer that the worksheet improved quiz scores.
Use the random sample data to test the claim that the mean travel distance to work in California is less than 35 miles. Use 1% level of significance. Sample data: x¯=32.4 mi s=8.3 mi n=35 Identify the tail of the test. Find the P-value Will the null hypothesis be rejected? Is the initial claim supported?