STATISTICS: NUMERICAL MEASURES MULTIPLE CHOICE QUESTIONS In the following multiple choice questions‚ circle the correct answer. 1. Which of the following provides a measure of central location for the data? a. standard deviation b. mean c. variance d. range Answer: b 2. A numerical value used as a summary measure for a sample‚ such as sample mean‚ is known as a a. population parameter b. sample parameter c. sample statistic d.
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decimal places) 2. Find the value of z if the area under a Standard Normal curve a) to the right of z is 0.3632; b) to the left of z is 0.1131; c) between 0 and z‚ with z > 0‚ is 0.4838; d) between -z and z‚ with z > 0‚ is 0.9500. Ans : a) z = + 0.35 ( find 0.5- 0.3632 = 0.1368 in the normal table) b) z = -1.21 ( find 0.5 – 0.1131 = 0.3869 in the normal table) c ) the area between 0 to z is 0.4838‚ z = 2.14 d) the area to the
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rates of economic growth as well as transforming their economy into an industrial economy. In the last few decades‚ the world’s most populous nation has liberalised its economy and gone from producing low-quality and simple exports to sophisticated high-technology goods while attracting nearly $500 Billion in foreign direct investment (FDI). The Chinese government also implemented many strategies to do this and it has resulted in China overtaking the United States as the world’s growth engine. The emergence
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Human Growth and Development Name: Institution Affiliation: Human Growth and Development Introduction According to Jean Piaget’s theory of Cognitive Development children’s cognitive development formal operations is established at the cognitive development stage of about age 12 to 15 years. This is reflected in the child’s ability to reason adolescence hypothetically and independently on concrete states of affairs‚ with the structures represented by the logical combination systems. The rates
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China’s Economic Growth and Development China is presently the world’s largest economy in relation to its population of 1.3 billion. The country is currently a socialist economy ruled by a Communist Government‚ with significant structural changes impacting its economy as a result of the high rate of growth over the past decades. Its economy is in the transition phase‚ moving from being a centrally planned economy to a system based more on the market. A socialist or market economy can be defined
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NORMAL DISTRIBUTION 1. Find the distribution: a. b. c. d. e. f. following probabilities‚ the random variable Z has standard normal P (0< Z < 1.43) P (0.11 < Z < 1.98) P (-0.39 < Z < 1.22) P (Z < 0.92) P (Z > -1.78) P (Z < -2.08) 2. Determine the areas under the standard normal curve between –z and +z: ♦ z = 0.5 ♦ z = 2.0 Find the two values of z in standard normal distribution so that: P(-z < Z < +z) = 0.84 3. At a university‚ the average height of 500 students of a course is 1.70 m; the standard
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Effects of Physical Development on Adolescents Case study/scenario Liza Garcia Psychology 6215-2‚ Week 8‚ October 30‚ 2011 Benjamin Lopez is a 14-years-old boy‚ with a thin body‚ a small stature although in recent months he has increased from two to three inches‚ he have long hair tied up with a pony tail‚ the facial hair‚ the acne in his face and the deepening of his voice‚ are characteristics of the pubertal transition from child to adolescent. According to Berk‚ (2010) some of the
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Kaylah Major October 8‚ 2014 Human Growth& Development Mrs. Williams How using Marijuana during pregnancy will effect the unborn child I believe that if you’re pregnant and you want to have a healthy baby‚ then it’s very important to avoid using drugs during your pregnancy. Illegal drugs such as Marijuana is a very harmful drug that will effect fetal development. These drugs can have permanent effects on an unborn child. Studies indicate that about 4% of women in the USA use illegal drugs while
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Part 1: Many people think that human development means childhood development from birth to adolescence. This assumption had been supported by the developmental theories of Freud and Piaget. However‚ we will learn throughout this course that development does not end at the start of adulthood; it continues till the end-of-life. This is the life span perspective of development. Describe the importance of the life span perspective of development. Describe some of the main hallmarks of each one of
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Confirming Pages C H A P T E R 6 The Normal Distribution Objectives Outline After completing this chapter‚ you should be able to 1 2 3 Identify distributions as symmetric or skewed. 4 Find probabilities for a normally distributed variable by transforming it into a standard normal variable. Introduction 6–1 Normal Distributions Identify the properties of a normal distribution. Find the area under the standard normal distribution‚ given various z values.
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