Understandable Statistics: Concepts and Methods
12th Edition
ISBN: 9781337119917
Author: Charles Henry Brase, Corrinne Pellillo Brase
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 11.4, Problem 12P
(a)
To determine
Verify the
Convert the sequence of numbers to a sequence of symbols A and B.
(b)
To determine
Check whether the sequence for randomness about the median at the 5% level of significance or not.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
2.62 For the period 2001–2008, the Bristol-Myers Squibb Company, Inc. reported the following amounts (in billions of dollars) for (1) net sales and (2) advertising and product promotion. The data are also in the file XR02062.
Source: Bristol-Myers Squibb Company, Annual Reports, 2005, 2008.
Year Net Sales Advertising/Promotion
2001 $16.612 $1.201
2002 16.208 1.143
2003 18.653 1.416
2004 19.380 1.411
2005 19.207 1.476
2006 16.208 1.304
2007 18.193 1.415
2008 20.597 1.550
For these data, construct a line graph that shows both net sales and expenditures for advertising/product promotion over time. Some would suggest that increases in advertising should be accompanied by increases in sales. Does your line graph support this?
Because of high tuition costs at state and private universities, enrollments atcommunity colleges have increased dramatically in recent years. The following data show theenrollment (in thousands) for Jefferson Community College from 2001–2009:Year Period (t) Enrollment (1000s)2001 1 6.52002 2 8.12003 3 8.42004 4 10.22005 5 12.52006 6 13.32007 7 13.72008 8 17.22009 9 18.1Compute F10: the Forecast for 2010. Compute Pearson’s Correlation Coefficient Use the Method of Least Squares to obtain the Best-Fit-Line for this data. Use the line to compute the forecast.
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). Conclusion
Chapter 11 Solutions
Understandable Statistics: Concepts and Methods
Ch. 11.1 - Statistical Literacy To apply the sign test, do...Ch. 11.1 - Prob. 2PCh. 11.1 - Economic Growth: Asia Asian economies impact some...Ch. 11.1 - Debt: Developing Countries Borrowing money may be...Ch. 11.1 - Education: Exams A high school science teacher...Ch. 11.1 - Prob. 6PCh. 11.1 - Prob. 7PCh. 11.1 - Prob. 8PCh. 11.1 - Prob. 9PCh. 11.1 - Prob. 10P
Ch. 11.1 - Prob. 11PCh. 11.1 - Prob. 12PCh. 11.2 - Prob. 1PCh. 11.2 - Prob. 2PCh. 11.2 - Prob. 3PCh. 11.2 - Prob. 4PCh. 11.2 - Prob. 5PCh. 11.2 - Prob. 6PCh. 11.2 - Prob. 7PCh. 11.2 - Prob. 8PCh. 11.2 - Prob. 9PCh. 11.2 - Prob. 10PCh. 11.2 - Prob. 11PCh. 11.3 - Prob. 1PCh. 11.3 - Statistical Literacy Consider the Spearman rank...Ch. 11.3 - Prob. 4PCh. 11.3 - Prob. 5PCh. 11.3 - Prob. 6PCh. 11.3 - Prob. 7PCh. 11.3 - Prob. 8PCh. 11.3 - Prob. 9PCh. 11.3 - Prob. 10PCh. 11.3 - Prob. 11PCh. 11.4 - Prob. 1PCh. 11.4 - Prob. 2PCh. 11.4 - Prob. 3PCh. 11.4 - Prob. 4PCh. 11.4 - Prob. 5PCh. 11.4 - Prob. 6PCh. 11.4 - Prob. 7PCh. 11.4 - Prob. 8PCh. 11.4 - Prob. 9PCh. 11.4 - Prob. 10PCh. 11.4 - Prob. 11PCh. 11.4 - Prob. 12PCh. 11 - Prob. 1CRPCh. 11 - Prob. 2CRPCh. 11 - Prob. 3CRPCh. 11 - Prob. 4CRPCh. 11 - Prob. 5CRPCh. 11 - Prob. 6CRPCh. 11 - Prob. 7CRPCh. 11 - Prob. 8CRPCh. 11 - Prob. 9CRPCh. 11 - Prob. 10CRPCh. 11 - Prob. 1CURPCh. 11 - Prob. 2CURPCh. 11 - Prob. 3CURPCh. 11 - Prob. 4CURPCh. 11 - Prob. 5CURPCh. 11 - Prob. 6CURPCh. 11 - Prob. 7CURP
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
- 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). 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_forwardof This frequency table depicts the average hours spent on social media use for students in PSY201 class. Hours Frequency 4 3.5 3 2.5 2 1.5 1 0.5 0 10 5 5 3 7 16 0 5 3 How many students spent at least 3 hours on social media in PSY201?arrow_forwardUse the following table to answer questions 6–9. Monthly Water Bills Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec $40 $42 $40 $38 $48 $50 $58 $62 $56 $46 $44 $44 6. Write the formula for the mean water bill for the entire year using sigma notation and determine that mean. Round your answer to the nearest cent.arrow_forward
- The file P02_26.xlsx lists sales (in millions of dollars) of Dell Computer during the period 1987–1997 (where year 1 corresponds to 1987). Year Sales 1 69 2 159 3 258 4 389 5 546 6 890 7 2014 8 2873 9 3475 10 5296 11 7759 a. Fit a power and an exponential trend curve to these data. Which fits the data better? b. Use your part a answer to predict 1999 sales for Dell. c. Use your part a answer to describe how the sales of Dell have grown from year to year.arrow_forwardIn Exercises 11–18, use the indicated data to construct the frequency distribution. (The data for Exercises 13–16 can be downloaded at TriolaStats.com.) Burger King Lunch Service Times Refer to Data Set 25 “Fast Food” and use the drive-through service times for Burger King lunches. Begin with a lower class limit of 70 seconds and use a class width of 40 seconds.arrow_forward. e-Filing Tax Returns The Internal Revenue ServiceRestructuring and Reform Act (RRA) was signed intolaw by President Bill Clinton in 1998. A major objective ofthe RRA was to promote electronic filing of tax returns.The data in the table that follows show the percentage ofindividual income tax returns filed electronically for filingyears 2004–2012. Since the percentage P of returns filedelectronically depends on the filing year y, and each inputcorresponds to exactly one output, the percentage ofreturns filed electronically is a function of the filing year; soP1y2 represents the percentage of returns filed electronicallyfor filing year y.(a) Find the average rate of change of the percentage ofe-filed returns from 2004 to 2006.(b) Find the average rate of change of the percentage ofe-filed returns from 2007 to 2009.(c) Find the average rate of change of the percentage ofe-filed returns from 2010 to 2012.(d) What is happening to the average rate of change as timepasses?arrow_forward
- The following table shows the approximate number of wireless telephone subscriptions in recent years.arrow_forwardTable 3.5 provides the number of deaths from all causes and from accidents (unintentional injuries) by age group in the United States in 2002. Review the following rates. Determine what to call each one, then calculate it using the data provided in Table. 1. Unintentional-injury-specific mortality rate for the entire population. Calculate cause-specific mortality rate. 2. All-cause mortality rate for 25–34 years old. Calculate the age-specific mortality rate. 3. All-cause mortality among males. Calculate the sex-specific mortality rate. 4.Unintentional-injury specific mortality among 25 to 34 years old males. Calculate the is a cause-specific, age-specific, and sex-specific mortality ratearrow_forwardDuring one shift, the express lane clerk recorded how many times customers violated the "10 items or less" rule for his lane. In particular, he recorded how many items over the limit each violator placed on the conveyor belt. This data is summarized in the histogram below. NOTE: The last class actually represents "7 or more items," not just 7 items. Frequency 12+ 298 ans = 10- a 2 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 # items over 10 What is the frequency of times the limit was exceeded by at least 3 items?arrow_forward
- During one shift, the express lane clerk recorded how many times customers violated the "10 items or less" rule for his lane. In particular, he recorded how many items over the limit each violator placed on the conveyor belt. This data is summarized in the histogram below. NOTE: The last class actually represents "7 or more items," not just 7 items. Frequency 144 12- 10+ 8- 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 #items over 10 Q What is the frequency of times the limit was exceeded by at least 2 items? Answer: timesarrow_forward2.31 The median income for a four-person family has been reported as shown here for 1993–2003. Source: Time Almanac 2006, p. 627. 1993 $45,161 1999 $59,981 1998 56,061 1994 47,012 2000 62,228 1995 49,687 2001 63,278 1996 51,518 2002 62,732 1997 53,350 2003 65,093 Construct a line graph describing these data over time.arrow_forwardFor Exercises 7–10, (a) compute the arithmetic mean and (b) indicate whether it is a 7. There are 10 salespeople employed by Midtown Ford. The number of new cars statistic or a parameter. Sold last month by the respective salespeople were: 15, 23, 4, 19, 18, 10, 10, 0 28, 19. Dve order company counted the number of incoming calls per day to the compa- Ivs toll-free number during the first 7 days in May: 14, 24, 19, 31, 36, 26, 17.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSON
The Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. Freeman
Introduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman
Time Series Analysis Theory & Uni-variate Forecasting Techniques; Author: Analytics University;https://www.youtube.com/watch?v=_X5q9FYLGxM;License: Standard YouTube License, CC-BY
Operations management 101: Time-series, forecasting introduction; Author: Brandoz Foltz;https://www.youtube.com/watch?v=EaqZP36ool8;License: Standard YouTube License, CC-BY