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Stratford University Amount of Water in Bottle Central Limit Theorem Discussion.

Central Limit TheoremInitial Post (250+ words):Collect some quantitative data. Find the sample mean and standard deviation. Plot it in a histogram. Does the data seem to follow the bell curve of the normal distribution? What features of the data do or do not fit in with the shape of the normal curve. How much deviation from the curve is to be expected?Now perform a normality test on your data (Shapiro-Wilk test: http://sdittami.altervista.org/shapirotest/ShapiroTest.html or http://www.brianreedpowers.com/MAT240/stats/descriptiveStats.html)– the test will give you a p-value. The higher the p-value, the more closely your data follows the normal distribution. Based on the test, do you think your data could have been drawn from a normal distribution?Responses (100+ words x2):Choose two of your classmates’ data sets. Take 30 random samples of 5 data points each (one way: Past the data here http://www.randomizelist.com/ randomize the list and take the first 5 numbers, or use the sampling feature at http://www.brianreedpowers.com/MAT240/stats/descriptiveStats.html), and calculate the average for each of these samples. You will now have 30 sample means. Create and post a histogram for your sample means. What is the mean of these means? What is the standard deviation? Does this make sense based on the Central Limit Theorem? Do the sample means follow a normal distribution? What p-value does the normality test give? How and why does this differ from the original data?Classmate #1 to respond to:Since I am very curious to analyze the statistics for the USA’s Income and improvement, I have collected the Personal Income [ in Millions of dollars] for the past year 2018. My purpose to study this data is to check which states are getting a boost on Personal Income and which states still need consideration and funds from the government to improve its economy.What is Personal Income by State?The income people living in each state and the District of Columbia get from wages, proprietors’ income, dividends, interest, rents, and government benefits. These statistics help assess and compare the economic well-being of state residents. The data is collected from the website named Bureau of Economic Analysis which is an official website of the United States government. This data is collected by the Bureau of Economic Analysis from all the 50 States of the country.The mean Personal Income [Millions of dollars] in all 50 states of the United States for the year 2018 is 344567.2.The Standard deviation of Personal Income [Millions of dollars] in all 50 states of the United States for the year 2018 is 432699.8.the data doesn’t seem to follow the bell curve of the normal distribution.As the Personal Income for some states is too low and for some too high, the data is not normally distributed and do not fit in with the shape of the normal curve.The data is not following the curve, but the deviation of the data is 432699.8.Classmate #2 to respond to:A survey was posted to social media to collect the heights of 30 people in inches for study. This is the data set that was used for analysis this week on normally distributed data. The sample size of 30 was chosen specifically because it is hypothesized that this is a large enough sample size to apply the Central Limit Theorem.The sample mean and standard deviation were calculated. The mean, or average of the data, was found to be 63.6 inches and the sample standard deviation was calculated to be 9.1 inches. To understand the shape of the distribution a histogram was calculated and is presented below. Since there were 30 data points, it was calculated that 6 bins should be used, and these bins would have a width of 6.2. This is demonstrated in the figure.There is a slight bell curve shape to the data, but the area in the right tail is too large to follow a strict bell-shaped pattern. We would expect a very small amount of counts in the outer two tails, with one central mode that is equal to the mean; the data here has two modes. The sample size is only 30, which is somewhat small, but large enough that one could expect to use the Central Limit Theorem to generalize a normal distribution, especially for data like height. However, small samples will always have more error in them, so the size of the sample could be expected to be causing the non-normal appearance of the data. A normality test was performed for this data set using the Shapiro-Wilk test. This test will test the hypothesis that the data is normally distributed, vs the alternative hypothesis that the data is not normally distributed. The p-value that was calculated for this information was 0.939 at the 0.10 level. This p-value is large enough that the data would appear to be normal.
Stratford University Amount of Water in Bottle Central Limit Theorem Discussion

Share this: Facebook Twitter Reddit LinkedIn WhatsApp Abstract Autism Spectrum Disorder (ASD) and Childhood Apraxia of Speech (CAS) are different diagnoses that present with similar characteristics. While children with ASD and CAS have different interventions, there may be an advantage in treating them together. The purpose of this research paper is to assess whether children with ASD and CAS can benefit from the use of both Picture Exchange Communication System (PECS) and Prompts for Restructuring Oral Muscular Phonetic Target (PROMPT). Introduction Childhood Apraxia of Speech (CAS) and Autism Spectrum Disorder (ASD) are two distinct disorders. CAS is a motor speech planning and/or programming disorder characterized by reduced volitional movements of the articulators in the absence of neuromuscular deficits (Teverovsky, Bickel,

## Bonded Wire Strain Gauges Research Paper

Bonded Wire Strain Gauges Research Paper. When a piece of conductive metal is under strenuous force, it broadens and decreases in length. If the stresses stay within the elastic limit, then such strip can work as a gauge for measuring physical force. Strain gauge measures stresses from machinery e.g. in aircraft parts (Irwin and Robert 20). Bonded wire strain gauge is the most common usually less than one inch long in measurement. Engineers use bonded wire strain gauge to show the measurement of changes that have taken place on large surfaces. Bonded wire strain gauge consists of a bendable features and a strain gauge that joins the bendable parts. If the bendable part moves, then the strain gauge changes resistance. Bonded wire strain gauge typically has codes which consist of a contact point for the lever arm. Any movement in the lever arm results into contact with the point of contact. The resulting contact creates a complete electrical circuit. This generates signals. Conversely, if the lever arm leaves the contact point, then electrical circuit breaks and generation of signals stops. Types Bonded wire strain gauges exist in three forms, namely, metal foil, fine wire, and semi-conductor gauge. These gauges rely on direct pasting or bonding on the surface of object under measurement. An application of stress on the bonded strain gauge causes the electric resistance to change end-to-end (Hibbeler 120). Fine wire strain gauge has a thin bended wire of 0.025 mm diameter. The wire ensures an equal distribution of stress. The wire is usually between two carrier bases connected to each other. They protect the gauge from any possible damages. It mainly consists of nichrome at 80%, constantan of 45%, nickel, platinum, and isoelastic of 36%. Fine wire strain gauge has a high accuracy, a range of positive or negative 0.3 percent of strain, and a linearity of positive or negative one percent. Engineers use printed circuit method to produce metal foil strain gauge. Lead electrically joins the strain gauge to an instrument of measurement which is a wheat stone bridge. The advantages of a metal foil is that its shape is flexible, produces a perfect bonding, stands pressure for a long time, and is sensitive even under the extreme high temperatures. Semi-conductor strain gauge takes the form a wafer from geranium or silicon crystals. Additional of boron creates preferred properties in a process known as doping that produces a doped crystal. This is the sensor which lies on stainless steel or plastic backing. Gold-coated lead electrically connects sensing materials with the strain gauge for measuring objects. This model has both negative and positive sensing element with reference to tensile strain. It measures extremely small strains, and their sizes can also be extremely small. It has a higher accuracy of 2.3 percent, high frequency of giving results and a longer life with perfect hysteresis properties. Problem Bonded wire strain gauge cannot be “detached and used again because of the bond” (Irwin and Robert 25). Likewise, point of contact and the lever usually wear off, which produce poor electrical signals resulting into erroneous interpretation of signal, thus, gives garble the results. The system is also mechanically complex consisting of moveable parts of balls or needle bearing, which are expensive and difficult to manufacture. Some gauges are brittle and cannot withstand large strains. There are also others with poor linearity, as others are sensitive to extremely high temperatures. Works Cited Hibbeler, Russell C. Mechanics of Materials, 8th ed. New Jersey: Prentice Hall, 2010. Print. Irwin, J. David and Robert M. Nelms. Basic Engineering Circuit Analysis. New York: John Wiley, 2004. Print. Bonded Wire Strain Gauges Research Paper

## Northern Virginia Community College Arrays in Java Programming Project

essay helper free Northern Virginia Community College Arrays in Java Programming Project.

Play Video (note: Arrays in Raptor, the first index starts at 1.) Read/Review Arrays in Java (Note: Arrays in Java, the first index starts at 0.)Create a program in Raptor to read in 5 numerical grades and then display the overall average grade and all grades that were over the average. The number that you entered and are above the calculated average.age.
Northern Virginia Community College Arrays in Java Programming Project

## Managing work shift requirements, writing homework help

Managing work shift requirements, writing homework help.

Managing work shift requirements, writing homework help

## PGCC Effects of Limited Environmental Regulation Discussion

PGCC Effects of Limited Environmental Regulation Discussion.

Are there health and wellness reasons to limit environmental regulations, restrictions, or laws in your selected country (from Module 2)? Why or why not? Consider not only health and wellness effects on your chosen country, but also the effects on populations in other countries. Would your perspective change if you were a farmer, a CEO of a large manufacturing corporation, or the head of the national public health organization in your chosen country? Use evidence such as peer- reviewed literature and appropriately-vetted sources to support your posts.300 wordsReferences required: minimum of 2
PGCC Effects of Limited Environmental Regulation Discussion

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