Statistics Cheat Sheet Proportion = Frequency x 100 = Percentage Total No | Z score (standardised value)-how many sds from the mean the value liesZ score = data value – mean Standard deviation | Metric Data = ExploreCategory = Frequencies | Bigger sample size will give a narrower confidence interval range (more specific) outliers affect the mean but not the median – this is why the median is preferred here.mean | | Reports -Only give confidence
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In the speech “ What to the Slave Is the Fourth of July?” given by Frederick Douglass‚ he announces his goals for the future men and women of the United States. Douglass is a well known‚ powerful public speaker who was born into slavery then later escaped at the age of twenty one. On the day of his speech‚ he addresses an audience at the Rochester Ladies’ Anti-Slavery Society during a time where people of the United States visioned the total abolition of slavery as a profound cause. He speaks against
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Extra Exercise: Estimation and Hypothesis Testing 1. The length (in millimetres) of a batch of 9 screws was selected at random from a large consignment and found to have the following information. 8.02 8.00 8.01 8.01 7.99 8.00 7.99 8.03 8.01 Construct a 95% confidence interval to estimate the true average length of the screws for the whole consignment. From a second large consignment‚ another 16 screws are selected at random and their mean and standard deviation found to be
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In the summer of 2012‚ my mother and I decided to go up north to Medford‚ Wisconsin. This weekend it was a special day! The Fourth of July! All I was worried about was fireworks. I love fire my parents always called me a pyro as a little kid. Son we packed up all our stuff for the weekend and headed out for the long car ride ahead of us. The first thing I saw when we pulled up was a huge landscape filled with trees and small‚ leafy brush everywhere! In the middle of it was a gigantic pond‚ I guess
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Tests and Quizzes for Statistics Quiz #1 Question 1 of 20 0.0/ 1.0 Points If a variable has possible values –2‚ 6‚ and 17‚ then this variable is A.a discrete variable B.a continuous variable C.neither a continuous nor a discrete variable D.both a continuous and a discrete variable Answer Key: A Question 2 of 20 1.0/ 1.0 Points Which of the following statistics is not a measure of central location? A.Median B.Mode C.Interquartile range D.Mean Answer Key: C Question
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SUMMER-2015 Get solved assignments at nominal price of Rs.120 each. Mail us at: subjects4u@gmail.com or contact at 09882243490 Master of Business Administration- MBA Semester 1 MB0040–Statistics for Management-4 Credits (Book ID: B1731) Assignment (60 Marks) Note: Answer all questions (with 300 to 400 words each) must be written within 6-8 pages. Each Question carries 10 marks 6 X 10=60 Q1. Distinguish between Classification and Tabulation. Explain the structure and components of a Table with an
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or print) used to promote a product. Answer – Qualitative as it is descriptive or categorical. 1.17 Classify each of the following qualitative variables as ordinal or nominative. Explain your answers. Qualitative Variable Categories Statistics course letter grade A B C D F Answer – Ordinal because there is a meaningful order of the grade categories i.e. (A is good and F is bad) Door choice on Let’s Make a Deal Door #1 Door#2 Answer – Nominative because there is no meaningful ordering
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Wildlife & Conservation Statistics Extinction of Species • Every 20 minutes‚ the world adds another 3‚500 human lives but loses one or more entire species of animal or plant life - at least 27‚000 species per year. (Source: PBS) • At the present rates of extinction‚ as many as 20% of the world’s 7-15 million species could be gone in the next 30 years. This rate of extinction has been unprecedented since the disappearance of dinosaurs 65 million years ago (Source: WWF). Habitat Destruction (Source:
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In my observations and thoughts of reading the “The Fourth of July” by Audre Lorde‚ I found the reading to be quite empowering. The author walked me through a memory of her childhood that impacted her life quite greatly. As a result‚ I felt that the author was experiencing acts of racism when encountering Non African Americans. I found it quite interesting that the author used all her rage in order to create something positive and meaningful. I can connect to the author because I had a similar experience
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Sohal‚ S 04/05/11 (HLT-362 V) Applied Statistics for Healthcare Professionals Exercise 18 Q1. Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between ( - 53.68‚ 64.64)‚where did 95% of the values for weight relative to the ideal lie? Round your answer to two decimal places. Answer: Mean of weight relative to ideal = 5.48 and Standard Deviation (σ) = 22.93. Calculation: (x bar) 1.96(σ) 5.48± 1.96(22.93) 5.48 - 1.96(22.93)
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