CHAPTER 1: INTRODUCTION AND DATA COLLECTION 1. The process of using sample statistics to draw conclusions about true population parameters is called a) statistical inference. b) the scientific method. c) sampling. d) descriptive statistics. ANSWER: a TYPE: MC DIFFICULTY: Easy KEYWORDS: inferential statistics 2. Those methods involving the collection‚ presentation‚ and characterization of a set of data in order to properly describe the various features of that set of data are called a) statistical
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Sample Final MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Questions 1-4 The following is a set of data from a sample of size n( n=6): 1) Find the mean of the data set A) 15 B) 14 C) 10 D) 13.5 10‚ 17‚ -2‚ 10‚ 23‚ 26. 2) Find the standard deviation of the data set A) 9.33 B) 522.00 C) 104.40 D) 10.22 3) The five-number summary of the data set consists of __________‚ __________‚ __________‚ __________‚ and __________. A) -2‚ 10‚ 13.5‚
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STATISTIC (1) A study of the number of cars sold looked at the number of cars sold at 500 Dealers The smallest dealer had 11 cars sold and the largest had 154 cars sold. If you were going to create a frequency distribution of the number of cars sold using six classes in your frequency distribution‚ which of the following might be a reasonable first class? (a) 0 to 25
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Question 1 of 10 1.0 Points A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial‚ they wish to determine whether there is a difference between the effectiveness for women and for men. Using = .05‚ what is the value the test statistic? Women Men Sample size 50 80 Mean effect 7 6.95 Sample variance 3 4 A. t = 3.252 B. z = 0.455 C. z = 0.081 D. z = 0.151 Answer Key: D Question
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| | | ------------------------------------------------- Top of Form Points Awarded | 34.00 | Points Missed | 6.00 | Percentage | 85.0% | 1. The level of significance associated with a significance test is the probability A) of rejecting a true null hypothesis. B) of not rejecting a true null hypothesis. C) that the null hypothesis is true. D) that the alternative hypothesis is true. Feedback: This level of significance‚ commonly set to α equal to 0.05‚ is used to set
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Joseph Wakile Math 110-04 December 12‚ 2014 Final Paper Height vs. Shoe Size I chose two quantitate variables in this study in order to see if they had any linear relationship. The dependent (response) variable was a person’s shoe size in united states meaurements and the independent (explanatory) variable was person’s height in inches. I chose these two variables because I assume before the study that there would be appositive linear relationship between height and shoe size. In other words‚ the
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Globali | Test | Final Exam | Started | 9/14/12 7:22 PM | Submitted | 9/14/12 8:45 PM | Status | Completed | Score | 260 out of 300 points | Time Elapsed | 1 hour‚ 22 minutes out of 2 hours. | Instructions | This final exam consist of 30 multiple choice questions and covers the material in chapters 8 through 17. There are three questions from each chapter and the questions are in chapter order. Be sure you are in the correct Chapter when you take the exam. | * Question
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FINAL EXAM PBHE525 Complete the final exam offline during the final exam week. Once you have complete the exam‚ input your exam into the final exam shell in the exam folder on the course webpage. Good luck 1. 2. 3. 4. 5. 6. 7. 8. US Census statistics show that college graduates make more than $254‚000 more in their lifetime than non-college graduates. If you were to question the validity of this observation‚ what would be your basis for doing so? A. Definition of a college graduate
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Final Exam Use one of the following variables to design an experiment pertaining to your biogas generator: 1.) Temperature 2.) Slurry Mix 3.) Consistency 4.) Surface area 5.) Light Intensity 6.) Percent cow manure 7.) Volume of Slurry/Volume of bottle ratio Experimental Design (70 points) Title | How the Volume of the Slurry Mix Effected the Biogas Generator | Type of Experiment | Experimental | Background Information | Methane is a chemical compound
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University of Phoenix Final Exam Directions: Based on your readings and discussions in class‚ select the best answer. Utilize the Text Highlight feature or Bold your response. 1. Which of the following types of insurance protects you if you are sued for accidentally damaging someone’s property or hurting another person? a. Term life insurance b. Accidental death insurance c. Universal life insurance d. Personal liability insurance or an umbrella policy 2. To calculate accurately the size
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