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### Quiz2-1

Course: STATS 200, Fall 2010
School: KCTCS
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Word Count: 262

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200 STA Quiz 2 Solutions 1) A numerical characteristic of the sample is known as what? Solution: Statistic 2) When asking survey questions, you should satisfy which of the following? Solution: All other choices are correct (Remove unnecessary complexity, Questions asked in a neutral manner, Put questions in random order) 3) Suppose you are conducting a study and decide to send out 12,000 surveys. If 8500 surveys...

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200 STA Quiz 2 Solutions 1) A numerical characteristic of the sample is known as what? Solution: Statistic 2) When asking survey questions, you should satisfy which of the following? Solution: All other choices are correct (Remove unnecessary complexity, Questions asked in a neutral manner, Put questions in random order) 3) Suppose you are conducting a study and decide to send out 12,000 surveys. If 8500 surveys are completed and returned, what is your response rate? Solution: 71% 4) Which of the following types of error is expected when doing inferential statistics and will not cause bias in your sample? The margin of error when calculated covers only this type of error. Solution: Random sampling error 5) The values of a statistic should satisfy which of the following? Solution: No bias and small variability 6) To ensure a statistic is not biased, should what be done? Solution: Take a random sample 7) If you increase the sample size in a study, what effect does that have on your margin of error if all other quantities are held constant? Solution: Margin of error decreases 8) A simple random sample of 2500 Americans shows that 1800 feel the president is performing well. Calculate the percent of the sample that feel the president is performing well. Solution: 72% 9) A simple random sample of 2500 Americans shows that 1800 feel the president is performing well. Calculate the margin of error for this percent. Solution: 2% 10) Suppose the president approval rating is 40% with 3% as the margin of error. Which of the following is the correct confidence statement? Solution: We are 95% confident that the percentage of Americans who feel the president is performing well is between 37% and 43%.
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KCTCS - STATS - 200
STA 200 Quiz 3 Solutions 1) You are testing the effects of aspirin and diet on whether a heart attack can be prevented. You will have three doses of aspirin that you will test in your study (250mg, 500mg, and 1000mg). The types of diet you will consider a
KCTCS - STATS - 200
STA 200 Quiz 4 Solutions 1) You would draw a pie chart to display what? Solution: One qualitative variable 2) What type of graph is this? Solution: Bar graph3) Identify the category with the highest frequency in the graph. Solution: Always4) Which time
KCTCS - STATS - 200
KCTCS - STATS - 200
Statistics- the study of how to collect, organize, analyze and interpret infoPopulation- the collection of individuals or items of interest Census- measurements from an entire pop are used Sample- the subset of the pop on which we take measurements Data-
KCTCS - STATS - 200
sample mean: When most people use the word average, they are talking about the mean.whereis the sample meanis the sumis the data valuesis the sample sizeThe mean is the sum of the data values divided by the sample size.Important characteristics of the
KCTCS - STATS - 200
Sample space the set of all possible outcomes from an experiment Roll a diequant. Flip a coinqual.Event a subset of the sample space Probability (of an event A) denoted , is the expected proportion of occurrences of A if the experiment were performed a la
KCTCS - STATS - 200
Ch 21Mean of stat = parameter i ts estimate , stand. D.Estimate pop portion with confidence , Level of Confidence The degree of certainty (probability that we are correct)Level of significance denoted is one minus the level of confidence (probabili ty
KCTCS - STATS - 200
Statistics- the study of how to collect, organize, analyze and interpret info, Population- the collection of individuals or items of interest, Censusmeasurements from an entire pop are used, Sample- the subset of the pop on which we take measurements, Dat
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NAME LAB TIME/DATE_Gross Anatomy of the Brain and Cranial NervesThe Human Brain1. Match the letters on the diagram of the human brain (right lateral view) to the appropriate terms listed at the left.h b jI. 2. 3. 4. 5. 6.7.frontal lobe parietal lo
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Miami Dade - BSC - 2085
CHAPTER1The Human Body: An Orientation: Part ACopyright 2010 Pearson Education, Inc.Overview of Anatomy and Physiology Anatomy: The study of structure Subdivisions: Gross or macroscopic (e.g., regional, surface, and systemic anatomy) Microscopic (e.g
Miami Dade - BSC - 2085
CHAPTER1The Human Body: An Orientation: Part BCopyright 2010 Pearson Education, Inc.Anatomical Position Standard anatomical body position: Body erect Feet slightly apart Palms facing forwardCopyright 2010 Pearson Education, Inc.Cephalic Frontal Orb
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CHAPTER2Chemistry Comes Alive: Part ACopyright 2010 Pearson Education, Inc.Matter Anything that has mass and occupies space States of matter:1. Solid-definite shape and volume 2. Liquid-definite volume, changeable shape 3. Gas-changeable shape and vo
Miami Dade - BSC - 2085
Miami Dade - BSC - 2085
CHAPTER3Cells: The Living Units: Part ACopyright 2010 Pearson Education, Inc.Cell Theory The cell is the smallest structural and functional living unit Organismal functions depend on individual and collective cell functions Biochemical activities of c
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CHAPTER3Cells: The Living Units: Part BCopyright 2010 Pearson Education, Inc.Membrane Transport: Active Processes Two types of active processes: Active transport Vesicular transport Both use ATP to move solutes across a living plasma membraneCopyri
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CHAPTER3Cells: The Living Units: Part CCopyright 2010 Pearson Education, Inc.Cytoplasm Located between plasma membrane and nucleus Cytosol Water with solutes (protein, salts, sugars, etc.) Cytoplasmic organelles Metabolic machinery of cell Inclu
Miami Dade - BSC - 2085
CHAPTER3Cells: The Living Units: Part DCopyright 2010 Pearson Education, Inc.Cell Cycle Defines changes from formation of the cell until it reproduces Includes: Interphase Cell division (mitotic phase)Copyright 2010 Pearson Education, Inc.Interphas
Miami Dade - BSC - 2085
CHAPTER4Tissue: The Living Fabric: Part ACopyright 2010 Pearson Education, Inc.Tissues Groups of cells similar in structure and function Types of tissues Epithelial tissue Connective tissue Muscle tissue Nerve tissueCopyright 2010 Pearson Education,
Miami Dade - BSC - 2085
CHAPTER5The Integumentary SystemCopyright 2010 Pearson Education, Inc.Skin (Integument) Consists of three major regions1. Epidermis-superficial region 2. Dermis-middle region 3. Hypodermis (superficial fascia)-deepest region Subcutaneous layer deep t
Miami Dade - BSC - 2085
CHAPTER6Bones and Skeletal Tissues: Part ACopyright 2010 Pearson Education, Inc.Skeletal Cartilages Contain no blood vessels or nerves Dense connective tissue girdle of perichondrium contains blood vessels for nutrient delivery to cartilageCopyright
Miami Dade - BSC - 2085
CHAPTER6Bones and Skeletal Tissues: Part BCopyright 2010 Pearson Education, Inc.Bone Development Osteogenesis (ossification)-bone tissue formation Stages Bone formation-begins in the 2nd month of development Postnatal bone growth-until early adulthoo
Miami Dade - BSC - 2085
CHAPTER7The Skeleton: Part ACopyright 2010 Pearson Education, Inc.The Axial Skeleton Consists of 80 bones Three major regions Skull Vertebral column Thoracic cageCopyright 2010 Pearson Education, Inc.Skull Thoracic cage (ribs and sternum) Vertebral
Miami Dade - BSC - 2085
CHAPTER7The Skeleton: Part BCopyright 2010 Pearson Education, Inc.Vertebral Column Transmits weight of trunk to lower limbs Surrounds and protects spinal cord Flexible curved structure containing 26 irregular bones (vertebrae) Cervical vertebrae (7)
Miami Dade - BSC - 2085
CHAPTER7The Skeleton: Part CCopyright 2010 Pearson Education, Inc.Appendicular Skeleton Bones of the limbs and their girdles Pectoral girdle attaches the upper limbs to the body trunk Pelvic girdle secures the lower limbsCopyright 2010 Pearson Educa
Miami Dade - BSC - 2085
CHAPTER8Joints: Part ACopyright 2010 Pearson Education, Inc.Joints (Articulations) Articulation-site where two or more bones meet Functions of joints: Give skeleton mobility Hold skeleton togetherCopyright 2010 Pearson Education, Inc.Functional Cla
Miami Dade - BSC - 2085
CHAPTER8Joints: Part BCopyright 2010 Pearson Education, Inc.Classification of Synovial Joints Six types, based on shape of articular surfaces: Plane Hinge Pivot Condyloid Saddle Ball and socketCopyright 2010 Pearson Education, Inc.Plane Joints Nona
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CHAPTER9Muscles and Muscle Tissue: Part ACopyright 2010 Pearson Education, Inc.Three Types of Muscle Tissue 1. Skeletal muscle tissue: Attached to bones and skin Striated Voluntary (i.e., conscious control) Powerful Primary topic of this chapterCopy
Miami Dade - BSC - 2085
CHAPTER9Muscles and Muscle Tissue: Part BCopyright 2010 Pearson Education, Inc.Review Principles of Muscle Mechanics 1. Same principles apply to contraction of a single fiber and a whole muscle 2. Contraction produces tension, the force exerted on the
Miami Dade - BSC - 2085
CHAPTER9Muscles and Muscle Tissue: Part CCopyright 2010 Pearson Education, Inc.Force of Muscle Contraction The force of contraction is affected by: Number of muscle fibers stimulated (recruitment) Relative size of the fibers-hypertrophy of cells incr
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CHAPTER10The Muscular System: Part ACopyright 2010 Pearson Education, Inc.Skeletal Muscles: Functional Groups 1. Prime movers Provide the major force for producing a specific movement2. Antagonists Oppose or reverse a particular movementCopyright
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CHAPTER10The Muscular System: Part BCopyright 2010 Pearson Education, Inc.Muscles of the Thorax Muscles of respiration External intercostals-more superficial muscles that elevate ribs for inspiration Internal intercostals-deeper muscles that aid forc
Miami Dade - BSC - 2085
CHAPTER10The Muscular System: Part CCopyright 2010 Pearson Education, Inc.Muscles Crossing the Shoulder Joint Nine muscles cross the shoulder joint to insert on and move the humerusCopyright 2010 Pearson Education, Inc.Muscles Crossing the Shoulder
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CHAPTER10The Muscular System: Part DCopyright 2010 Pearson Education, Inc.Muscles Crossing Hip and Knee Joints Most anterior muscles flex the femur at the hip and extend the leg at the knee (foreswing of walking) Most posterior muscles extend the thig
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CHAPTER11Fundamentals of the Nervous System and Nervous Tissue: Part ACopyright 2010 Pearson Education, Inc.Functions of the Nervous System 1. Sensory input Information gathered by sensory receptors about internal and external changes2. Integration
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CHAPTER11Fundamentals of the Nervous System and Nervous Tissue: Part CCopyright 2010 Pearson Education, Inc.The Synapse A junction that mediates information transfer from one neuron: To another neuron, or To an effector cellCopyright 2010 Pearson Ed
Miami Dade - BSC - 2085
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Miami Dade - BSC - 2085
CNS nd close in response to changes in and spinalthis case) simultaneous movement of Na+ andsensory input and indicates motor nsmitter binds to Consist of brain membrane voltage. integrating and command; interprets K+. the receptor, allowing (in cord. Is
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Miami Dade - BSC - 2085
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Miami Dade - BSC - 2085
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%!PS-Adobe-2.0 %Creator: dvips(k) 5.86 Copyright 1999 Radical Eye Software %Title: spectral.dvi %Pages: 8 %PageOrder: Ascend %BoundingBox: 0 0 612 792 %DocumentFonts: Helvetica %EndComments %DVIPSWebPage: (www.radicaleye.com) %DVIPSCommandLine: dvips -t l
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