Chapter 2: Descriptive Statistics CHAPTER 2: Descriptive Statistics 2.3 [LO 1] 28 2007 #1 28 71‚273.93 58‚069‚987.70 7‚620.37 59490 87970 28480 Distribution is skewed right. Descriptive statistics count mean sample variance sample standard deviation minimum maximum range Stem and Leaf plot for stem unit = leaf unit = Frequency 2 9 13 4 28 #1 10000 1000 Stem 5 6 7 8 Leaf 99 123446677 0000112444447 1377 Distribution is more normally shaped in 2007. 2.5 [LO 2] a. We have 2
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mailman delivers the mail follows a normal distribution with a mean of 2:00PM and a standard deviation of 15 minutes (20 pts) a) What is the probability that the mail will arrive before 1:50PM? b) What is the probability that the mail will arrive after 2:30PM? c) What is the probability that the mail will arrive between 1:40PM and 2:20PM? d) Between what two times (equally before the mean and equally after the mean) accounts for the mail being delivered 95% of the time?
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are some of the most tempting emotions in life. When most people feel like you have offended them their main instinct is to defend them and get angry that they would ever think that because they did “nothing”. Sometimes‚ people can seem mad or even mean for reasons you may not know or understand. Even people who act like this constantly can deep down sometimes be nice and have a reason for their regular meanness. A story by Toni Cade Bambara called “Raymond’s Run” features a girl called Hazel ‚known
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encompassed ten University students and ten teachers and examined the effect of an Attentive Audience condition compared to Mere Presence condition on the performance of a complex word task. No significant difference was found between both conditions in the mean number of words obtained. This study supports Zajonc ’s (1965) Drive Theory as the most reliable indicator in determining individual ’s behaviour in the presence of others. A major area of social psychology is the study of an individual ’s behaviour
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Group 7 MOTION PICTURES INDUSTRY- CASE STUDY The data collected for a sample of 100 motion pictures produced in 2005 is given below. A survey is carried out to analyze how different variables of the Motion Picture Industry contribute to the success of its motion pictures. The study focuses on four major variables‚ Opening Gross Sales‚ Total Gross Sales‚ Number of Theatres and weeks in top 60. Motion Picture Opening Gross Sales( $millions) Total Gross Sales ($ millions) Number of Theaters
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that the courage and unselfishness of individuals is ever going to make any system work b. Communal – Kindness and fair play between nation‚ classes and individuals c. Purpose – the thinking that every individual lives on forever. This means that we are more valuable than anything in the world which will come to an end. 2. What are the 4 Cardinal Virtues? (Give a definition of cardinal and each of the virtues)? Cardinal virtues are virtues which are common to all people‚ Christian
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word? ______________________ What clues helped you? Did another strategy work? What does the word mean in the article where you found it? What do you think the word means? What is the word? _____________________ What is the word? ______________________ What clues helped you? Did another strategy work? What does the word mean in the article where you found it? What do you think the word means? Check your ideas. Ask someone else to look at your Bad Examples. Perhaps that person will see clues
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Statistics. This data is available on the student website under the Student Test Resources link. 1. By hand‚ compute the mean‚ median‚ and mode for the following set of 40 reading scores: SUMMARY 31 32 43 42 24 34 25 44 23 43 24 36 25 41 23 28 14 21 24 17 25 23 44 21 13 26 23 32 12 26 14 42 14 31 52 12 23 42 32 34 2. Compute the means for the following set of scores saved as Ch. 2 Data Set 3 using IBM® SPSS® software. Print out a copy of the output. (Please
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CHAPTER 1: Productivity = Units producedInput used (1-1) Multifactor productivity (total factor) = ductivity) qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqOutputLabor+Material+Energy+Capital+Miscellaneous (1-2) CHAPTER 7: Value-added time = Operation time/total time (H-B) SUPPLEMENT 7: Utilization = Actual OutputDesign Capacity (S7-1) Efficiency = Actual OutputEffective Capacity (S7-2) Actual (Expected) output = (Effective
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and Dow Jones index by our SAS output result‚ I constructed a single regression model: Y=β0+β1X (β0 = the intercept of 3-Month T-bill rate) (β1 = the slope of Dow Jones Index) 3-Month T-Bill rate=-0.04883+0.00000670*Dow Jones Index This means that when the Dow Jones Index increased by one point‚ the 3-Month T-bill rates will increase by 0.00067%. According to the
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