EP STATISTICS-ACCESS (18 WEEK)
5th Edition
ISBN: 9780135960592
Author: Sullivan
Publisher: PEARSON CO
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Chapter 2.2, Problem 48AYU
To determine
To explain: An appropriate graphical summary for the following variables.
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Question 2
The data below provides the battery life of thirty eight (38) motorcycle batteries.
100 83 83 105 110 81 114
99 101 105 78 115 74 96
106
89
94 81 106 91 93 86
79 103 94 108 113 100
117 120
77 93
93 85 76
89 78 88
680
a. Test the hypothesis that mean battery life is greater than 90. Use the 1% level of
significance.
b. Determine if the mean battery life is different from 80. Use the 10% level of
significance. Show all steps for the hypothesis test
c. Would your conlcusion in part (b) change at the 5% level of significance? |
d. Confirm test results in part (b) using JASP. Note: All JASP input files and output
tables should be provided
Suppose that 80% of athletes at a certain college graduate. You randomly select eight athletes. What’s the chance that at most 7 of them graduate?
Suppose that you flip a fair coin four times. What’s the chance of getting at least one head?
Chapter 2 Solutions
EP STATISTICS-ACCESS (18 WEEK)
Ch. 2.1 - 1. Define raw data in your own words.
Ch. 2.1 - 2. A frequency distribution lists the _____ of...Ch. 2.1 - 3. In a relative frequency distribution, what...Ch. 2.1 - Prob. 4AYUCh. 2.1 - 5. Flu Season The pie chart shown, the type we see...Ch. 2.1 - 6. Cosmetic Surgery This USA Today–type chart...Ch. 2.1 - 7. Most Valuable Player The following Pareto chart...Ch. 2.1 - 8. Poverty The U.S. Census Bureau uses money...Ch. 2.1 - 9. Divorce The following graph represents the...Ch. 2.1 - Prob. 10AYU
Ch. 2.1 - 11. Made in America A random sample of 2163 adults...Ch. 2.1 - Prob. 12AYUCh. 2.1 - 13. College Survey In a national survey conducted...Ch. 2.1 - 14. College Survey In a national survey conducted...Ch. 2.1 - Prob. 15AYUCh. 2.1 - Prob. 16AYUCh. 2.1 - 17. Texting A survey of U.S. adults and teens...Ch. 2.1 - 18. Educational Attainment The educational...Ch. 2.1 - Prob. 19AYUCh. 2.1 - Prob. 20AYUCh. 2.1 - Prob. 21AYUCh. 2.1 - Prob. 22AYUCh. 2.1 - Prob. 23AYUCh. 2.1 - 24. Blood Type A phlebotomist draws the blood of a...Ch. 2.1 - Prob. 25AYUCh. 2.1 - Prob. 26AYUCh. 2.1 - 27. StatCrunch Survey Choose a qualitative...Ch. 2.1 - Prob. 28AYUCh. 2.1 - 29. Putting It Together: Online Homework Keeping...Ch. 2.1 - 30. When should relative frequencies be used when...Ch. 2.1 - Prob. 31AYUCh. 2.1 - Prob. 32AYUCh. 2.1 - Prob. 33AYUCh. 2.2 - 1. The categories by which data are grouped are...Ch. 2.2 - Prob. 2AYUCh. 2.2 - 3. The ______ is the difference between...Ch. 2.2 - Prob. 4AYUCh. 2.2 - 5. True or False: There is not one particular...Ch. 2.2 - 6. True or False: Stem-and-leaf plots are...Ch. 2.2 - 7. True or False: The shape of the distribution...Ch. 2.2 - Prob. 8AYUCh. 2.2 - Prob. 9AYUCh. 2.2 - 10. Car Sales A car salesman records the number of...Ch. 2.2 - 11. IQ Scores The following frequency histogram...Ch. 2.2 - Prob. 12AYUCh. 2.2 - Prob. 13AYUCh. 2.2 - In Problems 13 and 14, for each variable...Ch. 2.2 - 15. Predicting School Enrollment To predict future...Ch. 2.2 - Prob. 16AYUCh. 2.2 - Prob. 17AYUCh. 2.2 - Prob. 18AYUCh. 2.2 - Prob. 19AYUCh. 2.2 - Prob. 20AYUCh. 2.2 - Prob. 21AYUCh. 2.2 - Prob. 22AYUCh. 2.2 - Prob. 23AYUCh. 2.2 - Prob. 24AYUCh. 2.2 - 25. Televisions in the Household A researcher with...Ch. 2.2 - 26. Waiting The data below represent the number of...Ch. 2.2 - 27. Gini Index The Gini Index is a measure of how...Ch. 2.2 - 28. Average Income The following data represent...Ch. 2.2 - 29. Cigarette Tax Rates The table shows the tax,...Ch. 2.2 - 30. Dividend Yield A dividend is a payment from a...Ch. 2.2 - Prob. 31AYUCh. 2.2 - Prob. 32AYUCh. 2.2 - Prob. 33AYUCh. 2.2 - Prob. 34AYUCh. 2.2 - Prob. 35AYUCh. 2.2 - Prob. 36AYUCh. 2.2 - Prob. 37AYUCh. 2.2 - Prob. 38AYUCh. 2.2 - Prob. 39AYUCh. 2.2 - Prob. 40AYUCh. 2.2 - Prob. 41AYUCh. 2.2 - Prob. 42AYUCh. 2.2 - Prob. 43AYUCh. 2.2 - Prob. 44AYUCh. 2.2 - Prob. 45AYUCh. 2.2 - 46. Waiting Draw a dot plot of the waiting data...Ch. 2.2 - 47. Putting It Together: Time Viewing a Web Page...Ch. 2.2 - Prob. 48AYUCh. 2.2 - Prob. 49AYUCh. 2.2 - Prob. 50AYUCh. 2.2 - Prob. 51AYUCh. 2.2 - 52. Describe the situations in which it is...Ch. 2.2 - Prob. 53AYUCh. 2.2 - Prob. 54AYUCh. 2.3 - 1. What is an ogive?
Ch. 2.3 - Prob. 2AYUCh. 2.3 - Prob. 3AYUCh. 2.3 - Prob. 4AYUCh. 2.3 - Prob. 5AYUCh. 2.3 - Prob. 6AYUCh. 2.3 - 7. Graduation Rates The following relative...Ch. 2.3 - Prob. 8AYUCh. 2.3 - 9. Misery Index The following time-series plot...Ch. 2.3 - Prob. 10AYUCh. 2.3 - Prob. 11AYUCh. 2.3 - In Problems 13–16, use the frequency distributions...Ch. 2.3 - Prob. 13AYUCh. 2.3 - Prob. 14AYUCh. 2.3 - Prob. 15AYUCh. 2.3 - Prob. 16AYUCh. 2.3 - Prob. 17AYUCh. 2.3 - Prob. 18AYUCh. 2.3 - 19. Putting It Together: Rates of Return of Stocks...Ch. 2.3 - Prob. 20AYUCh. 2.3 - Prob. 21AYUCh. 2.3 - Prob. 22AYUCh. 2.3 - Prob. 23AYUCh. 2.4 - 1. Inauguration Cost The following is a USA...Ch. 2.4 - 2. Burning Calories The following is a USA...Ch. 2.4 - Prob. 3AYUCh. 2.4 - Prob. 4AYUCh. 2.4 - Prob. 5AYUCh. 2.4 - Prob. 6AYUCh. 2.4 - Prob. 7AYUCh. 2.4 - 8. You Explain It! Oil Reserves The U.S. Strategic...Ch. 2.4 - Prob. 9AYUCh. 2.4 - Prob. 10AYUCh. 2.4 - Prob. 11AYUCh. 2.4 - Prob. 12AYUCh. 2.4 - Prob. 13AYUCh. 2.4 - Prob. 14AYUCh. 2.4 - Prob. 15AYUCh. 2.4 - Prob. 16AYUCh. 2 - Prob. 1RECh. 2 - Prob. 2RECh. 2 - Prob. 3RECh. 2 - 4. Political Affiliation One hundred randomly...Ch. 2 - 5. Family Size A random sample of 60 couples...Ch. 2 - Prob. 6RECh. 2 - Prob. 7RECh. 2 - Prob. 8RECh. 2 - Prob. 9RECh. 2 - Prob. 10RECh. 2 - Prob. 11RECh. 2 - Prob. 12RECh. 2 - Prob. 1CTCh. 2 - Prob. 2CTCh. 2 - Prob. 3CTCh. 2 - 4. The following data represent the number of cars...Ch. 2 - Prob. 5CTCh. 2 - Prob. 6CTCh. 2 - 7. The following data represent the time (in...Ch. 2 - Prob. 8CTCh. 2 - Prob. 9CTCh. 2 - Prob. 1CSCh. 2 - Prob. 2CSCh. 2 - Prob. 3CSCh. 2 - Prob. 4CSCh. 2 - Prob. 5CSCh. 2 - Prob. 6CS
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