Statistical Reasoning for Everyday Life (5th Edition)
5th Edition
ISBN: 9780134494043
Author: Jeff Bennett, William L. Briggs, Mario F. Triola
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 9.2, Problem 10E
To determine
Check whether the given statement makes sense or does not make sense.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A study is planned to compare the proportion of teenagers (ages 13–19) who dislike anchovies with the proportion of young adults (ages 20–30) who dislike anchovies. A random sample of 41 teenagers was taken, and 78% of them disliked anchovies. A random sample of 56 young adults was also taken, and 71% of them disliked anchovies.
Difference = Teenagers - Young Adults
The picture below is the question. Use the information above to help.
In Exercises 29–32, identify the level of measurement of the data as nominal, ordinal, interval, or ratio. Also, explain what is wrong with the given calculation.
Temperatures As this exercise is being written, it is 80°F at the author’s home and it is 40°F in Auckland, New Zealand, so it is twice as warm at the author’s home as it is in Auckland, New Zealand.
d. Interpret the value of IQR in the above table.
Chapter 9 Solutions
Statistical Reasoning for Everyday Life (5th Edition)
Ch. 9.1 - Hypotheses and Hypothesis Tests. What is a...Ch. 9.1 - Null and Alternative Hypotheses. What is a mill...Ch. 9.1 - Hypothesis Test Outcomes. What are the two...Ch. 9.1 - P-Value. What is a P-value for a hypothesis?Ch. 9.1 - Does It Make Sense? For Exercises 512, determine...Ch. 9.1 - Does It Make Sense? For Exercises 512, determine...Ch. 9.1 - Significance. The results of my hypothesis test...Ch. 9.1 - Does It Make Sense? For Exercises 512, determine...Ch. 9.1 - Does It Make Sense? For Exercises 512, determine...Ch. 9.1 - Does It Make Sense? For Exercises 512, determine...
Ch. 9.1 - Prob. 11ECh. 9.1 - Does It Make Sense? For Exercises 512, determine...Ch. 9.1 - What Is Significant? In testing a method of gender...Ch. 9.1 - What Is Significant? In testing a method of gender...Ch. 9.1 - Formulating Hypotheses. In Exercises 1522, state...Ch. 9.1 - Formulating Hypotheses. In Exercises 1522, state...Ch. 9.1 - Formulating Hypotheses. In Exercises 1522, state...Ch. 9.1 - Formulating Hypotheses. In Exercises 1522, state...Ch. 9.1 - Prob. 19ECh. 9.1 - Formulating Hypotheses. In Exercises 1522, state...Ch. 9.1 - Formulating Hypotheses. In Exercises 1522, state...Ch. 9.1 - Formulating Hypotheses. In Exercises 1522, state...Ch. 9.1 - Drawing a Conclusion from a Hypothesis Test. If we...Ch. 9.1 - Drawing a Conclusion from a Hypothesis Test. If we...Ch. 9.1 - Drawing a Conclusion from a Hypothesis Test. If we...Ch. 9.1 - Drawing a Conclusion from a Hypothesis Test. If we...Ch. 9.1 - Drawing a Conclusion from a Hypothesis Test. If we...Ch. 9.1 - Drawing a Conclusion from a Hypothesis Test. If we...Ch. 9.2 - Notation. Briefly describe what each of the...Ch. 9.2 - Standard Score. When testing a claim about a...Ch. 9.2 - Critical Values. What do we mean by critical...Ch. 9.2 - Prob. 4ECh. 9.2 - Prob. 5ECh. 9.2 - Prob. 6ECh. 9.2 - Does It Make Sense? For Exercises 512, determine...Ch. 9.2 - Prob. 8ECh. 9.2 - Prob. 9ECh. 9.2 - Prob. 10ECh. 9.2 - Prob. 11ECh. 9.2 - Prob. 12ECh. 9.2 - Using Critical Values to Reject or Not Reject. In...Ch. 9.2 - Using Critical Values to Reject or Not Reject. In...Ch. 9.2 - Using Critical Values to Reject or Not Reject. In...Ch. 9.2 - Using Critical Values to Reject or Not Reject. In...Ch. 9.2 - Using Critical Values to Reject or Not Reject. In...Ch. 9.2 - Using Critical Values to Reject or Not Reject. In...Ch. 9.2 - Using Critical Values to Reject or Not Reject. In...Ch. 9.2 - Using Critical Values to Reject or Not Reject. In...Ch. 9.2 - Using P-Values to Reject or Not Reject. In...Ch. 9.2 - Using P-Values to Reject or Not Reject. In...Ch. 9.2 - Using P-Values to Reject or Not Reject. In...Ch. 9.2 - Using P-Values to Reject or Not Reject. In...Ch. 9.2 - Using P-Values to Reject or Not Reject. In...Ch. 9.2 - Using P-Values to Reject or Not Reject. In...Ch. 9.2 - Prob. 27ECh. 9.2 - Prob. 28ECh. 9.2 - Using P-Values to Reject or Not Reject. In...Ch. 9.2 - Prob. 30ECh. 9.2 - Prob. 31ECh. 9.2 - Prob. 32ECh. 9.2 - Prob. 33ECh. 9.2 - Prob. 34ECh. 9.2 - Hypothesis Tests for Means. For Exercises 3548,...Ch. 9.2 - Hypothesis Tests for Means. For Exercises 3548,...Ch. 9.2 - Hypothesis Tests for Means. For Exercises 3548,...Ch. 9.2 - Prob. 38ECh. 9.2 - Hypothesis Tests for Means. For Exercises 3548,...Ch. 9.2 - Hypothesis Tests for Means. For Exercises 3548,...Ch. 9.2 - Prob. 41ECh. 9.2 - Hypothesis Tests for Means. For Exercises 3548,...Ch. 9.2 - Hypothesis Tests for Means. For Exercises 3548,...Ch. 9.2 - Prob. 44ECh. 9.2 - Prob. 45ECh. 9.2 - Prob. 46ECh. 9.2 - Prob. 47ECh. 9.2 - Prob. 48ECh. 9.2 - Prob. 49ECh. 9.2 - Type I and Type II Errors. In Exercises 4952, a...Ch. 9.2 - Prob. 51ECh. 9.2 - Prob. 52ECh. 9.3 - Notation. What do n, p, p, and P-value represent?Ch. 9.3 - Standard Score. When testing a claim about a...Ch. 9.3 - Prob. 3ECh. 9.3 - P-Value. A P-value of 0.00001 is obtained when...Ch. 9.3 - Prob. 5ECh. 9.3 - Prob. 6ECh. 9.3 - Prob. 7ECh. 9.3 - Does It Make Sense? For Exercises 59, determine...Ch. 9.3 - Prob. 9ECh. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9.3 - Prob. 11ECh. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9.3 - Prob. 16ECh. 9.3 - Prob. 17ECh. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9.3 - Hypothesis Tests for Population Proportions. For...Ch. 9 - A random sample of 40 quarters minted after 1964...Ch. 9 - In a study of smokers who tried to quit smoking...Ch. 9 - Finding a Job Through Networking. In a survey of...Ch. 9 - A medical student wants to test the claim that...Ch. 9 - Identify the null and alternative hypotheses for...Ch. 9 - Identify the null and alternate hypotheses for...Ch. 9 - Identify the null and alternative hypotheses for...Ch. 9 - Prob. 4CQCh. 9 - Prob. 5CQCh. 9 - Prob. 6CQCh. 9 - In Exercises 510, assume that we want to use a...Ch. 9 - Prob. 8CQCh. 9 - In Exercises 510, assume that we want to use a...Ch. 9 - Prob. 10CQ
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
- The average house has 13 paintings on its walls. Is the mean larger for houses owned by teachers? The data show the results of a survey of 14 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 16, 14, 13, 15, 13, 12, 16, 12, 16, 14, 12, 12, 14, 12 What can be concluded at the a = 0.01 level of significance?arrow_forwardDo men take less time than women to get out of bed in the morning? The 42 men observed averaged 7.6 minutes to get out of bed after the alarm rang. Their standard deviation was 2.2. The 52 women observed averaged 9 minutes and their standard deviation was 2.1 minutes. What can be concluded at the a = :0.01 %3D level of significance?arrow_forwardAustin is in his first semester at Madison College and he completes the courses below. He college uses the following scale for quantifiying grades: A = 4, AB = 3.5, B = 3, BC = 2.5, C = 2, D = 1, F = 0. Course grades are weighted by the number of credits. Course Credits Grade BIO 101 2 BC PSY 112 1 B ENG 103 3 C SCI 105 2 C Calculate Austin's first semester GPA. Round to two decimal places.arrow_forward
- Grace recorded the forecasts that a local meteorologist made for one month, as well as the actual weather. The data she collected is shown in the table below. Grace concludes that the meteorologist is always better at predicting the weather when it does not rain. Which of these statements about Grace’s conclusion is correct? Explain your reasoningarrow_forwardConsider the following competing hypotheses: (You may find it useful to reference the appropriate table: z table or ttable) Hypotheses: He: HD 3 3; HA: HD > 3 Sample results: d = 5.7, sD = 6.9, n = 22 The following results are obtained using matched samples from two normally distributed populations: a. Calculate the value of the test statistic, assuming that the sample difference is normally distributed. (Negative value should be indicated by a minus sign. Round final answer to 3 decimal places.) Test statistic b. Find the p-value. O 0.025 Picture p-value < 0.05 O 0.01Picture p-value < 0.025 O pvalue < 0.01 O p-value Picture 0.10 O 0.05 Picture pvalue < 0.10 c. Use the 10% significance level to make a conclusion. Do not reject Ho since the p-value is more than a. Reject Ho since the p-value is more than a. Do not reject Ho since the p-value is less than a. Reject Ho since the p-value is less than a.arrow_forwardWhich is more variable: a sample of 1000 people where p=.05 or a sample of 1000 people where p=0.5? a. p=0.05 is more variable b. p=0.5 is more variablearrow_forward
- A researcher believes that the so-called “sugar high” is not real. He gathered 30 adolescents and recorded their activity level in the scale of 0 – 100 (0 = not active and 100 = super active). First, he recorded participants’ activity level before they consumed candy. After recording their pre-sugar activity level, the researcher gave out 5 Snickers bars to participants. Then, he recorded their post-sugar activity level. The average difference between post-sugar and pre-sugar activity level is 50 (i.e., the activity levels are higher after sugar than prior to it) with a standard deviation of 10. A). Complete test statistic and critical values B). Conclusionarrow_forwardA researcher believes that the so-called “sugar high” is not real. He gathered 30 adolescents and recorded their activity level in the scale of 0 – 100 (0 = not active and 100 = super active). First, he recorded participants’ activity level before they consumed candy. After recording their pre-sugar activity level, the researcher gave out 5 Snickers bars to participants. Then, he recorded their post-sugar activity level. The average difference between post-sugar and pre-sugar activity level is 50 (i.e., the activity levels are higher after sugar than prior to it) with a standard deviation of 10. A). What is the type of test you will use? (z-test, single-sample t-test, paired-samples t-test, or independent samples t-test) and why (what information provided in the problem)B). What are the hypotheses (Be Specific)arrow_forwardClassify the statement below that is either descriptive statistics or statisticalinferencei. Assuming that less than 20% of the coconut plantation in the Philippines weredestroyed after a typhoon “Yolanda”, we should expect an increase of coconut oils at30% after the third month.ii. At least 10% of all floods reported in 2020 are caused by release of water from thedams during heavy rainfall.a. Descriptive statistics and Descriptive statisticsb. Descriptive statistics and Statistical inferencec. Statistical inference and Statistical inferenced. Statistical inference and Descriptive statisticsarrow_forward
- Complete part C. C. Compute an estimate of the population parameter. Telephone survey of 2980 adults in certain country, 27% reported they own least one gun. Researchers want to estimate the true percentage of adults in that country that own at least one gun.arrow_forwardThe mode score on a statistics exam was 83. Which of these interpretations is correct? A.More students received an 83 than any other score. B.80 is the highest score in the class. C.No one scored below 50. D.A score of 83 was slightly below average.arrow_forwardThe accompanying table shows the number of students who earned an A, B, C, and D grade in a business statistics class along with their year in their program. Complete parts a through g. Grade Sophomore Junior A 12 32 B 32 38 C 19 18 D 11 4 a. What percentage of students in this class are juniors? The percentage is-----------%. (Round to one decimal place as needed.) b. What percentage of students in this class earned a B grade? The percentage is----------%. (Round to one decimal place as needed.) c. What percentage of students in this class were sophomores and earned a B grade? The percentage is----------%. (Round to one decimal place as needed.) d. What percentage of students in this class were juniors or earned an A grade? The percentage is---------%. (Round to one decimal place as needed.) e. What percentage of students in this class earned a C grade, given they were sophomores? The percentage…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
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Statistics 4.1 Point Estimators; Author: Dr. Jack L. Jackson II;https://www.youtube.com/watch?v=2MrI0J8XCEE;License: Standard YouTube License, CC-BY
Statistics 101: Point Estimators; Author: Brandon Foltz;https://www.youtube.com/watch?v=4v41z3HwLaM;License: Standard YouTube License, CC-BY
Central limit theorem; Author: 365 Data Science;https://www.youtube.com/watch?v=b5xQmk9veZ4;License: Standard YouTube License, CC-BY
Point Estimate Definition & Example; Author: Prof. Essa;https://www.youtube.com/watch?v=OTVwtvQmSn0;License: Standard Youtube License
Point Estimation; Author: Vamsidhar Ambatipudi;https://www.youtube.com/watch?v=flqhlM2bZWc;License: Standard Youtube License