GM 03 Business Statistics Assignment II Assignment Code: 2012 GM03 B2 Last Date of Submission: 15th November 2012 Maximum Marks: 100 Attempt all the questions. All questions are compulsory and carry equal marks. SECTION – A 1. a) Explain the need for different forecasting techniques. How can we evaluate as to how good is our forecast. b) Collect data on the amount of expenditure you do each day for the next 25 days and
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s |COLLEGE OF THE BAHAMAS | |BUSINESS STATISTICS | |FIRST INTERM EXAM | |COURSE: STAT201
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shorter than TT Air‚ it does not significantly affect the output as the one day does not change much (unless there had been a market shock). However based on Central Limit Theorem‚ if the sample size is greater than or equal to 30 samples‚ the sample statistics reflect the time population parameters. • The Median data does not show much in this case as the range (4.7 AA Fly and 6.8 TT Air) is small for both AA Fly and TT Air. This means that the mean is more applicable to be used. • The Mode of AA
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Scatterplots 4 Pearson’s Correlation 4 Spearman’s Rho 4 Probability 4 Binomial Distribution 4 Assumptions: 5 Subjective Probability 5 Normal Distribution 5 Standard Normal Distribution 5 Sampling Distribution 5 Standard Error of Statistic 5 Central Limit Theorem 5 Area under the Sampling Distribution of the Mean 6 Sampling Distribution‚ Difference between Independent means 6 Sampling Distribution of a Linear Combination of Means 6 Sampling Distribution of Pearson’s R 7
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Princess Faye N. Balatero Grade 8-Br. Edmund Hubert FSC Introduction: Statistics are used everywhere; we see statistics in use every day; statistics is used to answer important and practical questions. Statistics are useful in almost all disciplines. They are used in statistical analysis of results of an experiment‚ prediction of future values‚ growth and trend analysis‚ systematic presentation of data in the form of tables‚ diagrams and
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Symbol | Meaning | Example | | delete | | | close up | | | delete and close up | | | caret | | | insert a space | | | space evenly | | | let stand | | | transpose | | | used to separate two or more marks and often as a concluding stroke at the end of an insertion | | | set farther to the left | | | set farther to the right | | | set as ligature (such as ) | | | align horizontally | | | align vertically | | | broken character | | |
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H0: µ ≤ 3‚ H1: µ > 3 C H0: µ = 3‚ H1: µ ≠ 3 D H0: µ ≠ 3‚ H1: µ = 3 E None of the above Ans: B What is (are) the critical value(s)? A -1.96 and 1.96 B -1.645 C -1.645 and 1.645 D 1.645 E None of the above Ans: D What is the calculated test statistic? A 2.12 B 1.43 C 1.78 D 1.23 E None of the above Ans: A What is your conclusion? (choose the most correct answer) A Reject Ho at the 5% level of significance. B Accept Ho at the 5% level of significance. C Not sure. D
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INTRODUCTION Statistics is the study of the collection‚ analysis‚ interpretation‚ presentation‚ and organization of data. Pie Chart- a type of graph in which a circle is divided into sectors that each represent a proportion of the whole. A Bar Graph (also called Bar Chart) is a graphical display of data using bars of different heights. This report essentially highlights the average earning‚ median value and a graphical representation of the actor Aamir Khan’s box office earnings in the last 10
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1. Introduction This report is about the case study of PAR‚ INC. From the following book: Statistics for Business an Economics‚ 8th edition by D.R. Anderson‚ D.J. Sweeney and Th.A. Williams‚ publisher: Dave Shaut. The case is described at page 416‚ chapter 10. 2. Problem statement Par‚ Inc. has produced a new type of golf ball. The company wants to know if this new type of golf ball is comparable to the old ones. Therefore they did a test‚ which consists out of 40 trials with the current
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Millar Biology statistics made simple using Excel Biology statistics made simple using Excel Neil Millar Spreadsheet programs such as Microsoft Excel can transform the use of statistics in A-level science Statistics is an area that most A-level biology students (and their teachers!) find difficult. The formulae are often complicated‚ the calculations tedious‚ degrees of freedom mysterious‚ and probability tables confusing. But in fact students need no longer grapple with any of these.
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