ELEMENTARY STATISTICS: STEP BY STEP- ALE
10th Edition
ISBN: 9781266422362
Author: Bluman
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 13.5, Problem 12E
For Exercises 1 through 12, use the Kruskal-Wallis test and perform these steps.
a. State the hypotheses and identify the claim.
b. Find the critical value.
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.
12. Prices of Vitamin/Mineral Supplements The prices for 30-count packages of randomly selected store-brand vitamin/mineral supplements are listed from three different sources. At the 0.01 level of significance, can a difference in prices be concluded?
| Grocery store | Drugstore | Discount store |
| 6.79 | 7.69 | 7.49 |
| 6.09 | 8.19 | 6.89 |
| 5.49 | 6.19 | 7.69 |
| 7.99 | 5.15 | 7.29 |
| 6.10 | 6.14 | 4.95 |
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A standardized test has a scale that ranges from 3 to 45. A new type of review course for the test was developed by a training company. The accompanying table shows the scores for nine students before and after taking the review course. Complete parts (a) through (d) below.
E Click the icon to view the data table.
a. Perform a hypothesis test using a= 0.05 to determine if the average test score is higher for the students after the review course when compared with before the course. Let p, be the population mean of matched-pair differences for the score before the course minus the score after the course. State the null and
alternative hypotheses. Choose the correct answer below.
O A. Ho: Ha = 0
H,: Ha #0
O B. Ho: Ha 20
H,: Hg 0
H,: Ha s0
O D. Ho: Ha s0
H,: Hg>0
OF. Ho: Ha <0
H,: Hg 20
Test Scores
O E. Ho: Ha #0
H,: H = 0
Student
Before
After
26
28
b. Calculate the appropriate test statistic and interpret the results of the hypothesis test using a = 0.05.
23
25
18
16
The test statistic…
Determine the first step of hypothesis testing, and explain the procedure and logic of this step. Choose the correct answer below.
A.
The first step is to determine the level of significance at which to conduct the hypothesis test. The conventional levels of significance used are 5% and 1%, which are described as the 0.05 significance level and the 0.01 significance level, respectively. When a sample score is so extreme that researchers reject the null hypothesis, the result is said to be statistically significant.
B.
The first step is to restate the question as a research hypothesis and a null hypothesis about the populations. Since researchers are interested in the results in terms of the population, it is useful to restate the research question in terms of populations. The research hypothesis represents the research question being asked.
C.
The first step is to determine the characteristics of the comparison distribution. The overall logic of hypothesis…
The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample data is z = 1.90, then what is the correct
statistical decision?
a. Reject Ho
b. Reject H1
c. Fail to reject H1
d. Fail to reject Họ
Chapter 13 Solutions
ELEMENTARY STATISTICS: STEP BY STEP- ALE
Ch. 13.1 - The following table lists the percentages of...Ch. 13.1 - Exercises 131 1. What is meant by nonparametric...Ch. 13.1 - When should nonparametric statistics be used?Ch. 13.1 - Prob. 3ECh. 13.1 - List the disadvantages of nonparametric...Ch. 13.1 - Prob. 5ECh. 13.1 - Explain what is meant by the efficiency of a...Ch. 13.1 - Prob. 7ECh. 13.1 - For Exercises 7 through 12, rank each set of data....Ch. 13.1 - For Exercises 7 through 12, rank each set of data....
Ch. 13.1 - Prob. 10ECh. 13.1 - Prob. 11ECh. 13.1 - Prob. 12ECh. 13.2 - Clean Air An environmentalist suggests that the...Ch. 13.2 - Exercises 132 1. Why is the sign test the simplest...Ch. 13.2 - Prob. 2ECh. 13.2 - Prob. 3ECh. 13.2 - Prob. 4ECh. 13.2 - For Exercises 5 through 20, perform these steps....Ch. 13.2 - Prob. 6ECh. 13.2 - AID: 1825 | 12/01/2018 7. Annual Incomes for Men...Ch. 13.2 - Weekly Earnings of Women According to the Womens...Ch. 13.2 - Externships Fifty undergraduate students were...Ch. 13.2 - Lottery Ticket Sales A lottery outlet owner...Ch. 13.2 - Prob. 11ECh. 13.2 - Deaths due to Severe Weather A meteorologist...Ch. 13.2 - Prob. 13ECh. 13.2 - Television Viewers A researcher read that the...Ch. 13.2 - Prob. 15ECh. 13.2 - Exam Scores A statistics professor wants to...Ch. 13.2 - Prob. 17ECh. 13.2 - Effects of a Pill on Appetite A researcher wishes...Ch. 13.2 - Prob. 19ECh. 13.2 - Routine Maintenance and Defective Parts A...Ch. 13.2 - Prob. 21ECCh. 13.2 - Prob. 22ECCh. 13.2 - Prob. 23ECCh. 13.2 - 1, 8, 2, 6, 10, 15, 24, 33, 56, 41, 58, 54, 5, 3,...Ch. 13.2 - Prob. 25ECCh. 13.3 - School Lunch A nutritionist decided to see if...Ch. 13.3 - Prob. 1ECh. 13.3 - What is the parametric equivalent test for the...Ch. 13.3 - Prob. 3ECh. 13.3 - Lengths of Prison Sentences A random sample of men...Ch. 13.3 - Prob. 5ECh. 13.3 - Lifetimes of Handheld Video Games To test the...Ch. 13.3 - Prob. 7ECh. 13.3 - Winning Baseball Games For the years 19701993 the...Ch. 13.3 - Prob. 9ECh. 13.3 - Medical School Enrollments Random samples of...Ch. 13.3 - Prob. 11ECh. 13.3 - Student Participation in a Blood Drive Students in...Ch. 13.4 - Pain Medication A researcher decides to see how...Ch. 13.4 - Prob. 1ECh. 13.4 - Prob. 2ECh. 13.4 - Prob. 3ECh. 13.4 - For Exercises 3 and 4, find the sum of the signed...Ch. 13.4 - Prob. 5ECh. 13.4 - Prob. 6ECh. 13.4 - Prob. 7ECh. 13.4 - Prob. 8ECh. 13.4 - Prob. 9ECh. 13.4 - For Exercises 914, use the Wilcoxon signed-rank...Ch. 13.4 - Prob. 11ECh. 13.4 - For Exercises 914, use the Wilcoxon signed-rank...Ch. 13.4 - Prob. 13ECh. 13.4 - For Exercises 914, use the Wilcoxon signed-rank...Ch. 13.5 - Prob. 1ACCh. 13.5 - Prob. 1ECh. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 3ECh. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 5ECh. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 7ECh. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 9ECh. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 11ECh. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.6 - Tall Trees As a biologist, you wish to see if...Ch. 13.6 - Prob. 1ECh. 13.6 - Prob. 2ECh. 13.6 - Prob. 3ECh. 13.6 - Prob. 4ECh. 13.6 - Prob. 5ECh. 13.6 - For Exercises 5 through 14, perform these steps....Ch. 13.6 - Prob. 7ECh. 13.6 - For Exercises 5 through 14, perform these steps....Ch. 13.6 - Prob. 9ECh. 13.6 - Prob. 10ECh. 13.6 - Prob. 11ECh. 13.6 - For Exercises 5 through 14, perform these steps....Ch. 13.6 - Prob. 13ECh. 13.6 - For Exercises 5 through 14, perform these steps....Ch. 13.6 - Prob. 15ECh. 13.6 - Daily Lottery Numbers Listed below are the daily...Ch. 13.6 - Prob. 17ECh. 13.6 - Random Numbers Random? A calculator generated...Ch. 13.6 - Prob. 19ECh. 13.6 - Gender of Shoppers Twenty shoppers are in a...Ch. 13.6 - Employee Absences A supervisor records the number...Ch. 13.6 - Skiing Conditions A ski lodge manager observes the...Ch. 13.6 - Prob. 23ECh. 13.6 - Prob. 25ECh. 13.6 - Speeding Tickets A police chief records the gender...Ch. 13.6 - Prob. 27ECh. 13.6 - Prob. 28ECh. 13.6 - Prob. 29ECCh. 13.6 - Prob. 30ECCh. 13.6 - Prob. 31ECCh. 13.6 - Prob. 32ECCh. 13.6 - Prob. 33ECCh. 13 - For Exercises 1 through 13, follow this procedure:...Ch. 13 - Prob. 13.2.2RECh. 13 - Prob. 13.2.3RECh. 13 - Record High Temperatures Shown here are the record...Ch. 13 - Hours Worked by Student Employees Student...Ch. 13 - Prob. 13.4.6RECh. 13 - Prob. 13.4.7RECh. 13 - Prob. 13.5.8RECh. 13 - Prob. 13.5.9RECh. 13 - Prob. 13.6.10RECh. 13 - Prob. 13.6.11RECh. 13 - NBA Scoring Leaders The scoring leaders for the...Ch. 13 - Prob. 13.6.13RECh. 13 - Prob. 13.6.14RECh. 13 - Prob. 1DACh. 13 - Prob. 2DACh. 13 - Prob. 3DACh. 13 - Determine whether each statement is true or false....Ch. 13 - Prob. 2CQCh. 13 - Determine whether each statement is true or false....Ch. 13 - Determine whether each statement is true or false....Ch. 13 - Prob. 5CQCh. 13 - Prob. 6CQCh. 13 - Prob. 7CQCh. 13 - Prob. 8CQCh. 13 - Prob. 9CQCh. 13 - Prob. 10CQCh. 13 - Prob. 11CQCh. 13 - Complete the following statements with the best...Ch. 13 - Prob. 13CQCh. 13 - Prob. 14CQCh. 13 - Prob. 15CQCh. 13 - Prob. 16CQCh. 13 - Textbook Costs Samples of students majoring in law...Ch. 13 - Prob. 18CQCh. 13 - Prob. 19CQCh. 13 - Prob. 20CQCh. 13 - Prob. 21CQCh. 13 - Prob. 22CQCh. 13 - Prob. 23CQCh. 13 - Prob. 24CQCh. 13 - Prob. 25CQCh. 13 - Prob. 26CQ
Additional Math Textbook Solutions
Find more solutions based on key concepts
(a) Make a stem-and-leaf plot for these 24 observations on the number of customers who used a down-town CitiBan...
APPLIED STAT.IN BUS.+ECONOMICS
Evaluate the integrals in Exercises 1–46.
1.
University Calculus: Early Transcendentals (4th Edition)
Empirical versus Theoretical A Monopoly player claims that the probability of getting a 4 when rolling a six-si...
Introductory Statistics
Use the ideas in drawings a and b to find the solution to Gausss Problem for the sum 1+2+3+...+n. Explain your ...
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
1. How is a sample related to a population?
Elementary Statistics: Picturing the World (7th Edition)
For Problems 23-28, write in simpler form, as in Example 4. logbFG
Finite Mathematics for Business, Economics, Life Sciences and Social Sciences
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- I need help with A and Barrow_forwardThe critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample data is z =-1.90, what is the correct statistical decision? Question options: a. Reject H1 b. Fail to reject H1 c. Fail to reject H0 d. Reject H0arrow_forwardThe critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample data is z = 1.90, then what is the correct statistical decision? a. Fail to reject H0 b. Fail to reject H1 c. Reject H1 d. Reject H0arrow_forward
- Choose the correct answer.If the P-value of a test of significance is 0.999 then:A. the null hypothesis should be rejected.B. the null hypothesis should not be rejected.C. the alternative hypothesis provides a plausible explanation of the data.D. Both A and C are true.arrow_forwarda. Let p be the population proportion of correct polygraph results. Identify the null and alternative hypotheses. Choose the correct answer below. b. The test statistic is z= c. The P-value is enter your response here d. Identify the conclusion about the null hypothesis and the final conclusion that addresses the original claim.arrow_forwardConsider the hypothesis test below, with n = 65 and p = 0.46. Ho: p=0.38 HA:p#0.38 a = 0.05 a. State the decision rule in terms of the critical value of the test statistic. b. State the calculated value of the test statistic. c. State the conclusion. a. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. Reject the null hypothesis if the calculated value of the test statistic, z, is greater than and less than Otherwise, do not reject the null hypothesis. O B. Reject the null hypothesis if the calculated value of the test statistic, z, is less than Otherwise, do not reject the null hypothesis. O C. Reject the null hypothesis if the calculated value of the test statistic, z, is greater than Otherwise, do not reject the null hypothesis. O D. Reiect the null hvpothesis if the calculated value of the test statistic. z. is areater than or less than Otherwise. do not reiect the null hvpothesis.arrow_forward
- 2. Determine which of the following steps is NOT included in formulating hypothesis? A Identifying the claim of the researcher B. Use the data about the sample then compute for test statistic. Translate the claim into mathematical notations. C. D. Formulate the null and alternative hypothesis. 3. Turmeric has potent antiviral propenies that can eliminate virus attacks. What kind of hypothesis is it? A Null B. Alternative D. Hypothesis C. Mean 4. More than one fifth of the total manufacturing employment are vulnerable to COVID19-induced job disruption. What kind of hypothesis is this? A Null 8. Alternative C. Mean D. Hypothesis 5. Consider the statement in item # 4, which of the following is the null hypothesis? A Ho:us 20% B. Hau >0.20 C. Ha p>0.20 D. Hops 0.20 6. Consider the statement in item #4, which of the following is the alternative hypothesis? A Ho: u s 20% 8 Ha:p>0.20 C. Ha: p>0.20 D. Hops 0.20 7. Which of the following is the correct alternative hypothesis of the claim below?…arrow_forwardGaynor Advertising conducted a survey to determine individual’s main source of news as well astheir educational level. 2500 individuals were surveyed and the results are given in the attached table. a. State both the null and alternative hypotheses. b. Provide the decision rule for making this decision. Use an alpha level of 5%. c. Show all of the work necessary to calculate the appropriate statistic. d. What conclusion are you allowed to draw? e. Would your conclusion change at the 10% level of significance? f. Confirm test results in part (c) using JASParrow_forwardWhat are the correct answers?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Hypothesis Testing - Solving Problems With Proportions; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=76VruarGn2Q;License: Standard YouTube License, CC-BY
Hypothesis Testing and Confidence Intervals (FRM Part 1 – Book 2 – Chapter 5); Author: Analystprep;https://www.youtube.com/watch?v=vth3yZIUlGQ;License: Standard YouTube License, CC-BY