1 / 17

QNT 561 Week 4 Weekly Learning Assessments

QNT 561 Week 4 Weekly Learning Assessments – Learning made easy. Get instant help from our learned professors on the weekly learning assignments.<br>

StudenteHelp
Download Presentation

QNT 561 Week 4 Weekly Learning Assessments

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. QNT 561 Week 4 Weekly Learning Assessments - Assignment By www.StudenteHelp.com Copyright. All Rights Reserved by http://www.StudenteHelp.com

  2. Chapter 10 Exercise 2 [The following information applies to the questions displayed below.] A sample of 36 observations is selected from a normal population. The sample mean is 12, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.01 significance level H0: μ ≤ 10 H1: μ > 10 1. Award: 10 out of 10.00 points a. Is this a one- or two-tailed test? b. What is the decision rule? c. What is the value of the test statistic? d. What is your decision regarding H0? e. What is the p-value? Copyright. All Rights Reserved by http://www.StudenteHelp.com

  3. Chapter 10 Exercise 10 Given the following hypotheses: H0 : μ = 400 H1 : μ ≠ 400 A random sample of 12 observations is selected from a normal population. The sample mean was 407 and the sample standard deviation 6. Using the .01 significance level: a. State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.) b. Compute the value of the test statistic. (Round your answer to 3 decimal places.) c. What is your decision regarding the null hypothesis? To download QNT 561 Week 2 Complete Answers click here QNT 561 Week 2 Weekly Learning Assessments Copyright. All Rights Reserved by http://www.StudenteHelp.com

  4. Chapter 10 Exercise 12 The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart. The mean assembly time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard deviation of the sample was 2.7 minutes. Using the .10 level of significance, can we conclude that the assembly time using the new method is faster? a. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.) b. Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.) c. What is your decision regarding H0? Copyright. All Rights Reserved by http://www.StudenteHelp.com

  5. Chapter 10 Exercise 16 Given the following hypotheses: H0 : μ = 100 H1 : μ ≠ 100 A random sample of six resulted in the following values: 118, 105, 112, 119, 105, and 111. Assume a normal population. a. Using the .05 significance level, determine the decision rule? (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) b. Compute the value of the test statistic. (Round your answer to 2 decimal places.) c-1. What is your decision regarding the H0? c-2. Can we conclude the mean is different from 100? d. Estimate the p-value. Download QNT 561 Week 3 Complete Answers click QNT 561 Week 3 Weekly Learning Assessments Copyright. All Rights Reserved by http://www.StudenteHelp.com

  6. Chapter 11 Exercise 2 A sample of 65 observations is selected from one population with a population standard deviation of 0.75. The sample mean is 2.67. A sample of 50 observations is selected from a second population with a population standard deviation of 0.66. The sample mean is 2.59. Conduct the following test of hypothesis using the .08 significance level. H0 : μ1 ≤ μ2 H1 : μ1 > μ2 a. This a -tailed test. b. State the decision rule. (Negative values should be indicated by a minus sign. Round your answer to 2 decimal places.) c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) d. What is your decision regarding H0? e. What is the p-value? (Round your answer to 4 decimal places.) Copyright. All Rights Reserved by http://www.StudenteHelp.com

  7. Chapter 11 Exercise 8 The null and alternate hypotheses are: A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. At the .10 significance level, is there a difference in the population means? a. This is a -tailed test. b. The decision rule is to reject if (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) c. The test statistic is (Round your answer to 3 decimal places.) d. What is your decision regarding? e. The p-value is between and. Want to see the complete QNT 561 Individual Assignment Check..?? Click QNT 561 Copyright. All Rights Reserved by http://www.StudenteHelp.com

  8. Chapter 11 Exercise 14 The null and alternate hypotheses are: H0: μ1 ≤ μ2 H1: μ1 > μ2 A random sample of 20 items from the first population showed a mean of 100 and a standard deviation of 15. A sample of 16 items for the second population showed a mean of 94 and a standard deviation of 8. Use the .05 significant level. a. Find the degrees of freedom for unequal variance test. (Round down your answer to the nearest whole number.) b. State the decision rule for .05 significance level. (Round your answer to 3 decimal places.) c. Compute the value of the test statistic. (Round your answer to 3 decimal places.) d. What is your decision regarding the null hypothesis? Use the .05 significance level. Copyright. All Rights Reserved by http://www.StudenteHelp.com

  9. Chapter 12 Exercise 8 The following are six observations collected from treatment 1, four observations collected from treatment 2, and five observations collected from treatment 3. Test the hypothesis at the 0.05 significance level that the treatment means are equal. Treatment1 Treatment 2 9 13 7 20 11 14 9 13 12 10 a. State the null and the alternate hypothesis. Ho : H1 : Treatment means are all the same. Treatment 3 10 9 15 14 15 b. What is the decision rule? (Round your answer to 2 decimal places.) c. Compute SST, SSE, and SS total. (Round your answers to 2 decimal places.) d. Complete the ANOVA table. (Round SS, MS and F values to 2 decimal places.) e. State your decision regarding the null hypothesis. To download QNT 561 Final Exam complete answer check QNT 561 Final Exam Latest Copyright. All Rights Reserved by http://www.StudenteHelp.com

  10. Chapter 12 Exercise 14 A stock analyst wants to determine whether there is a difference in the mean rate of return for three types of stock: utility, retail, and banking stocks. The following output is obtained: a. Using the .05 level of significance, is there a difference in the mean rate of return among the three types of stock? b. Can the analyst conclude there is a difference between the mean rates of return for utility and retail stocks? For utility and banking stocks? For banking and retail stocks? Explain. Copyright. All Rights Reserved by http://www.StudenteHelp.com

  11. Chapter 12 Exercise 18 There are three hospitals in the Tulsa, Oklahoma, area. The following data show the number of outpatient surgeries performed on Monday, Tuesday, Wednesday, Thursday, and Friday at each hospital last week. At the 0.05 significance level, can we conclude there is a difference in the mean number of surgeries performed by hospital or by day of the week? Number of Surgeries Performed St. Luke's 14 20 Wednesday 16 Thursday 18 Friday 20 Day Monday Tuesday St. Vincent 18 24 22 20 28 Mercy 24 14 14 22 24 1.Set up the null hypothesis and the alternative hypothesis. For Treatment: Null hypothesis H0: µSt. Luke's = µSt. Vincent = 2. Alternative hypothesis H1: Not all means are Copyright. All Rights Reserved by http://www.StudenteHelp.com

  12. 3. For blocks: Null hypothesis H0: µMon = µTue = µWed = µThu = 4. Alternative hypothesis H1: Not all means are 5. State the decision rule for .05 significance level. (Round your answers to 2 decimal places.) For Treatment: Reject H0 if F> For blocks: Reject H0 if F> 6. Complete the ANOVA table. (Round SS, MS and F to 2 decimal places.) 7.What is your decision regarding the null hypothesis? The decision for the F value (Treatment) at 0.05 significance is: Do not Reject 8. The decision for the F value (Block) at 0.05 significance is: Do not Reject 9. Can we conclude there is a difference in the mean number of surgeries performed by hospital or by day of the week? There is no in the mean number of surgeries performed by hospital or by day of the week. Find the QNT 561 Week 4 answers here QNT 561 Week 4 Weekly Learning Assessments Copyright. All Rights Reserved by http://www.StudenteHelp.com

  13. Chapter 13 Exercise 16 Mr. James Mc Whinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales. To document this assertion, Mr. Mc Whinney gathered the following sample information. The X column indicates the number of client contacts last month, and the Y column shows the value of sales ($ thousands) last month for each client sampled. Number of Contacts, X 14 12 20 16 46 Sales ($ thousands), Y 24 14 28 30 80 Number of Contacts, X 23 48 50 55 50 Sales ($ thousands), Y 30 90 85 120 110 a. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Round final answers to 2 decimal places.) b. Determine the estimated sales if 40 contacts are made.(Do not round intermediate c. calculations. Round final answers to 2 decimal places.) Copyright. All Rights Reserved by http://www.StudenteHelp.com

  14. Chapter 13 Exercise 18 We are studying mutual bond funds for the purpose of investing in several funds. For this particular study, we want to focus on the assets of a fund and its five-year performance. The question is: Can the five-year rate of return be estimated based on the assets of the fund? Nine mutual funds were selected at random, and their assets and rates of return are shown below. Assets ($ millions) (%) $622.20 10.8 160.4 Return Assets ($ millions) (%) $494.50 11.6 158.3 Return Fund AARP High Quality Bond Babson Bond L Compass Capital Fixed Income Fund MFS Bond A Nichols Income 11.3 9.5 275.7 11.4 T. Rowe Price Short-term Thompson Income B 681 8.2 Galaxy Bond Retail Keystone Custodian B-1 433.2 437.9 9.1 9.2 241.3 6.8 Copyright. All Rights Reserved by http://www.StudenteHelp.com

  15. b-1. Compute the coefficient of correlation. (Round your answer to 3 decimal places. Negative amount should be indicated by a minus sign.) b-2. Compute the coefficient of determination. (Round your answer to 3 decimal places.) c. Give a description of the degree of association between the variables. d. Determine the regression equation. Use assets as the independent variable. (Round your answers to 4 decimal places. Negative amounts should be indicated by a minus sign.) e. For a fund with $400.0 million in sales, determine the five-year rate of return (in percent). (Round your answer to 4 decimal places.) To check QNT 561 Week 5 Complete Answers Click here QNT 561 Week 5 Weekly Learning Assessments Copyright. All Rights Reserved by http://www.StudenteHelp.com

  16. Chapter 13 Exercise 30 On the first statistics exam, the coefficient of determination between the hours studied and the grade earned was 80%. The standard error of estimate was 10. There were 20 students in the class. Develop an ANOVA table for the regression analysis of hours studied as a predictor of the grade earned on the first statistics exam. Source Regression Error Total DF SS MS Copyright. All Rights Reserved by http://www.StudenteHelp.com

  17. About Author This article covers the topic for the University of Phoenix QNT 561 Week 4 Weekly Learning Assessments. The author is working in the field of education from last 5 years. This article covers the questions & answers of QNT 561 Week 4 Weekly Learning Assessments from UOP. Other topics in the class are as follows: QNT 561 Final Exam Latest QNT 561 Week 2 Weekly Learning Assessments QNT 561 Week 3 Weekly Learning Assessments QNT 561 Week 4 Weekly Learning Assessments QNT 561 Week 5 Weekly Learning Assessments QNT 561 Week 6 Weekly Learning Assessments Want to check other classes..?? Visit www.studentehelp.com Copyright. All Rights Reserved by http://www.StudenteHelp.com

More Related