"Standard Deviation" Essays and Research Papers

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Ujian Matematik Tambahan

a2, a 3, a 4, a5, a6, has a mean of 5 and standard deviation of 1.5 Find (i) the sum of the marks, ∑ a , (ii) the sum of the squares of the marks, ∑a 2 [ 3 marks ] Answer ……………………... 3. The mean of a set of four positive integers is 6. When a number y is taken out from the set, the mean becomes 5. Find the value of y. [ 3 marks ] Answer ……………………... 4. The mean of the set of numbers 2.5, 3.6, 4.3, 5.8, x is 4.2 . Find the standard deviation of the set of data. Give your answer correct...

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Six Sigma Class Intro and Ppt

Sigma examples  Six Sigma Scale  Why Six Sigma  Six Sigma Methodologies & Tools  Define  Measure  Analyze  Improve  Control WHAT’S IN A NAME? Sigma is the Greek letter representing the standard deviation of a population of data.  Sigma is a measure of standard deviation (the data spread)  σ μ SIX SIGMA IS …  A statistical concept that measures a process in terms of defects – at the six sigma level, there 3.4 defects per million opportunities  A defect...

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|9 |31 | Table 4: Standard deviation | | | |Atrium |4.93 | | | | |Third Floor |2.65 | Atrium had a larger standard deviation in the mean data compared to the third floor shown in Table 4. [pic] ...

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Assignment Statistics

(b) and (c). (2) e) Estimate the mode of time spend per week browsing the site by drawing a histogram (4) f) Estimate the median of time spend per week browsing the site by drawing an ogive ‘less than’ (4) g) Calculate the standard deviation of time spend per week browsing the site. (3) h) Discuss the shape of the distribution of the time spend per week browsing the site by showing relevant calculations. (3) QUESTION 3 (20 MARKS) Samples arriving...

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Arithmetic Mean and Five-step P-value Approach

selected periodically, and the packaging process is stopped if there is evidence that the mean amount packaged is different from 8.17 ounces. Suppose that in a particular of 50 packages, the mean amount dispensed is 8.159 ounces, with a sample standard deviation of 0.051 A. Is there evidence that the population mean amount is different from 8.17 ounces? (Use a 0.05 level of significance.) B. Determine the p-value and interpret its meaning. 9.27 In New York State, savings banks are permitted to...

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computer assignment

wishes to use the numerical descriptive measures to summarize the data. (a) Prepare a numerical summary report about the data on the two variables the researcher has considered by including the summary measures, mean, median, range, variance, standard deviation, smallest and largest values and the three quartiles, for each variable. (b) Use five of the above summary measures to represent the summary information in a box plot for each variable. Draw the box plot (using Data Analysis Plus). (c)...

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Most Effective Hand Cleaner

disk from each section is measured in millimeters. The data is collected from each class and is compiled to calculate the mean, standard deviation, and SEM. The compiled data is analyzed by creating a bar graph to compare the zone of clearing for each group. Results: DATA | CLASS STASTICS | Treatment Groups | Clear Zone (mm) | Mean (mm) | Standard Deviation | SEM | Error Bars | | | | | | Mean + (1.96) SEM | Mean - (1.96) SEM | 1. Blank Disk | 0 | 0 | 0 | 0 | 0 | 0 | 2. Hand...

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Statistics Using Excel

categorical variable, with values of either 1 or 2. The "mean" of 1.42 doesn't mean much, except that the data set contains more men (1) than women (2). The standard deviation is equally meaningless. AGE, on the other hand, is a ratio variable. It makes sense to speak of the mean, median, mode (there isn't one, in these data) and the standard deviation. The program also provide the range (maximum value minus minimum value), the minimum value, and the maximum value. "Sum" is the ... well, the sum.....

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Juggling Motor Skill

variables and to measure persistence of skill across time. Third, transfer of skill was used to obtain skill adaptable results. Learner was able to transfer skill of juggling beanbags to apples. Fourth, statistics were calculated to find standard deviation, which showed consistency of skill learning. Methods To complete the juggling experiment, the student used the same three beanbags to perform the skill. All sessions were performed in the same room with closed windows and closed door...

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(in dollars), house characteristics and location desirability. Let Y= house price be the dependent variable and consider the following potential explanatory variables: (a) Using the data the calculate, interpret and discuss the mean, standard deviation, minimum, maximum, skewness, kurtosis and of Y, , , , and . (20 marks) (b) Estimate correlation coefficients between variables in (a) and comment on your results. (15 marks) (c) Regress Y and all the explanatory variables and discuss...

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