describing all different types of variables. The Frequencies procedure can produce such statistics as: frequencies (counts)‚ percentages‚ cumulative percentages‚ mean‚ median‚ mode‚ sum‚ standard deviation‚ variance‚ range‚ minimum and maximum values‚ standard error of the mean‚ skewness and kurtosis (both with standard errors)‚ quartiles and percentiles. It can also produce bar charts‚ pie charts‚ and histograms.Basic data analysis provides valuable insights and guides the rest of the data analysis
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An investigation on the factors affecting beat frequency of a coupled pendula system. Abstract In the course of this experiment‚ I investigate how the mass of the counter-weight affects the beat frequency‚ when the system is put into the perfect superposition of the symmetric and anti-symmetric modes. I then go onto to explore different factors and other ideas involved with coupled pendula systems. Essential Theory In order to gain understanding on the workings of these phenomena‚ I will be starting
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Experiment # 1 Date: 18/12/13 Title: Chemical Properties of Alkanes. Aim: To test the reactivity of alkanes using cyclohexane as an example. Apparatus/Materials: Cyclohexane‚ liquid alkane‚ aqueous bromine‚ test tubes‚ light source‚ watch glass‚ splint‚ 0.1 MKMnO4‚ concentrated H2SO4‚ dilute H2SO4. Method: Combustion: 1. A watch glass was placed on a benched protection sheet in a fume cupboard and the extractor in the fume on. 2. 4 drops of cyclohexane was placed on the watch glass using
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has failed with a probability of 0.30. What is the probability that fewer than 25 batteries will last at least 8 hours? A.0.8967 B.0.9991 C.0.0009 (CORRECT) D.0.0024 Question 7 of 25 1.0/ 1.0 Points The standard normal distribution has a mean of ___ and standard deviation of ___‚ respectively. A.1 and 0 B.0 and 0 C.0 and 1 (CORRECT) D.1 and 1 Question 8
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NORTHCENTRAL UNIVERSITY ASSIGNMENT COVER SHEET Student: ODEDOYIN ABEL THIS FORM MUST BE COMPLETELY FILLED IN Follow these procedures: If requested by your instructor‚ please include an assignment cover sheet. This will become the first page of your assignment. In addition‚ your assignment header should include your last name‚ first initial‚ course code‚ dash‚ and assignment number. This should be left justified‚ with the page number right justified. For example: Student: ODEDOYIN A MGT
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= 3 0.95 σ = 1 0.95 X 19 25 31 -2 0 +2 Normal curve showing Standard normal curve showing area between 19 and 31 area between -2 and +2 Entry to a certain University is determined by a national test. The scores on this test are normally distributed with a mean of 500 and a standard deviation of 100. Tom wants to be admitted to this university and he knows that he must score better than at least 70% of the students who
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HMC’s portfolio 2. Why is HMC focusing on real returns? 3. HMC’s estimates of expected returns‚ standard deviations and correlations di_er from the twenty-year historical estimates. Why might this be? Comment on the di_er- ence between the two sets of estimates‚ focusing on expected returns and standard deviations. 4. Let’s assume from now on that HMC’s estimates of expected returns‚ standard devia- tions and correlations are given in Exhibit 4. Looking at Exhibit 4‚ comment on the signs
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Process Improvement Plan University of Phoenix Dr. Anthony Matias March 24‚ 2011 Abstract The premise of this paper is to identify deficiencies in daily managerial processes by using systematic statistical process controls and make the necessary improvements. The paper will employ various examples and calculations along with supporting data to explain control limits and its importance to the statistical process control. The effects of seasonal factors and its relevance to a process
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reduce this by half as well as taking mean and standard deviation of each style into account. Obviously‚ to produce half of the forecast‚ it has to produce at lower than the “mean” (Average Forecast) of each style. By taking standard deviation into account‚ this can be calculated using the formula “Mean – K*Standard deviation” . Note that the standard deviation in this formula is “2*standard deviation” in the Exhibit 10 as Wally found that the standard
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Gender | Mean | Standard Deviation | Qualitative Description | Male | 3.21 | 0.58 | fair | Female | 2.94 | 0.59 | fair | Overall | 3.04 | -0.60 | Fair | Table 3 summarizes the academic Perception of Third Year High School Students on Disruptive Behaviour according to gender. The data shows that the mean of male students is 3.21with a standard deviation of 0.58 which is interpreted as fair. Moreover‚ the female students obtained a mean of 2.94 with a standard deviation of 0.59 that can
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