Let X have a binomial distribution with parameters n 25 and p. Calculate each of the following probabilities using the normal approximation (with the continuity correction) for the cases p .5, .6, and .8 and compare to the exact probabilities calculated from Appendix Table A.1. a. P(15 X 20) b. P(X 15) c. P(20 X)
Class notes from this week that will also be on the test Social polite touch initial introductions like business relationships or formal occasions like a handshake. Friendship warmth touch most ambiguous type of touch and least to misunderstandings between people. Too much touch is being too friendly but too little touch might makes you seem cold. Love and intimacy touch only for a very few special individuals like close friends family spouses. Sexual touch intimate and most restricted. There are 6 forms of taboo touching: 1. Strangers are the “untouchables” like when you bump someone you say sorry 2. Harmful touches should be avoided children know don’t hit or bite 3. Avoid startling touches a tap on shoulder is something startling. 4. Avoid the interruption touch kiss your partner during an intense movie scene (rejection usually occurs) 5. Don’t move others don’t just move people quickly say “sorry I need to get through” 6. Avoid rub it in wife says “go walk them to the door” then slaps his arm to do it To deal with touch violation: assume the violation is accidental, use descriptive statements to state that you don’t want to be touched that way, uses intense nonverbal cues and a direct firm demand and an apology if it was a mistake. Paralanguage: vocal cues Vocal characterizers laughing, yelling, crying, yawning Vocal qualifiers volume, tone, rhythm, rate Vocal segregates uh, uhhum, shh, ohh Proxemics: influence that distance and territoriality have on our communication. Types of spatial relationships and their characteristics in U.S Culture 1. Intimate close, loving, limited eye contact, touch smell 2. Personal within 4 feet from you, converse with friends, eye contact, gestures 3. Social 412 feet away, business talk, formal tones, eye contact 4. Public 12 feet or more, lectures, speeches, eye contact Territoriality: predisposition to defend a fixed geographic area or territory as ones exclusive domain. We use markers (fences, keep out signs), barriers to entry (walls, locked doors) and occupancy (same seat in class everyday) to stake out our territory. Other Notes from the chapter: Beauty bias perceived advantage accorded those who are viewed as attractive. Beautiful people are viewed to be sociable, happy, sexy etc. These people also tend to get paid more. Bilateral Symmetry the right and left sides match each other. Waisttohip ratio the smaller the waist is compared to the hip (hourglass shape) the greater the perception of attractiveness. Wedge shape broad shoulders and narrow waist and hips Oculesics eye contact and how it regulates conversational turn taking, communicates involvement and establishes connection with others. Facial feedback hypothesis facial expressions can influence emotions and vice versa. Display rules cultural specific prescriptions that dictate the appropriateness of behaviors Manipulators gestures made by one part of the body usually the hands that rub, pick, squeeze, clean or groom another body part. (People observing manipulators feel nervous and discomfort but at times one might feel relaxed or energized) Illustrators gestures that help explain what a person says to another person. Usually occurs simultaneously with the verbal message but sometimes begin while the speaker is still saying things. EX: Telling a person to turn right then point right Emblems gestures that have precise meanings separate form verbal communication. Ex: hand wave means goodbye.