Stats Test 1

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qualitative

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Tags and Description

information and definitions for statistics test no. 1

38 Terms

1

qualitative

are nominal levels of measurements quantitative or qualitative?

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2

a parameter is based on population, and a statistic is based on a sample

what is the difference between a parameter and a statistic?

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3

ratio

length of time

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4

interval

time of first class

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5

nominal

major field of study

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6

ordinal

course evaluation scale: poor, acceptable, good

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7

ordinal

salesperson performance: below average, average, above average

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8

ratio

price of company’s stock

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9

nominal

names of new products

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10

interval

temperature in CEO private office

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11

simple random sample

assign each business in the island business directory a number, and then use a random-number table to select the businesses to be included in the sample.

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12

cluster sample

use postal ZIP codes to divide the state into regions. pick a random sample of 10 ZIP codes areas and then include all the businesses in each included sample

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13

convenience sample

send a team of five research assistants to bishop street downtown. let each assistant select a block or building and interview an employee from each business found. each researcher can have the rest of the day off after getting responses from 20 different businesses

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14

systematic sample

use the island business directory. number all the businesses. select a starting place at random, and then use every 50th business listed until you have 100 businesses.

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15

cluster sample

randomly select some MMH facilities from each five geographic regions, and then include all the patients on the discharge lists of the selected hospitals

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16

systematic sample

at the beginning of the year, instruct each MMH facility to survey each 500th patient discharged

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17

convenience sample

instruct each MMH facility to survey 10 discharged patients this week and send in the results

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18

divide the frequency by the total

how do you determine relative frequency?

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19

continuous variable

suppose the average American tosses away 4.9lbs of garbage every day. the amount of garbage tossed daily is the ______

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20

discrete variable

tires salvaged from a truck accident on i-80 are on sale at a particular tire store. of the 49 tires offered for sale, 7 of them have suffered internal damage, and the remaining 42 are free of damage. the number of damaged tires for sale from the truck accident is the ________

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21

statistic

a _______ is a number that describes a sample

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22

parameter

a _____ is a number that describes a population

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23

statistic

a survery of 4,000 americans found that 67% voted in the last election. the number 67% is a ________

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24

statistic

a jokester polled 200 people and asked if they enjoyed taking polls. 79% of the people asked said no. the number 79% is a ________

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25

size of the sample

a jokester polled 200 people and asked if they enjoyed taking polls. 79% of the people asked said no. the number 200 is the __________

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26

ratio

numeric data that have order, in which we know the exact value between units, and also have an absolute zero, are called ________

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27

nominal

discrete data in which data are neither measured nor ordered, but subjects are allocated to distinct categories, are called _______

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28

ordinal

a psychologist gauges patient’s responses on a scale of terrible, not great, okay, good, or great. what level is this an example of?

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29

smallest to largest

stem and leaf displays are in order of _______

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30

yes

does the number get put into the chart twice if it is repeated in the data in a stem and leaf chart

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31

largest to smallest

pareto charts go in order of

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32

spread out

are the columns touching or spread out in a pareto chart

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33

the categories being looked at

what goes on the bottom of a pareto chart

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34

divide the frequency by the total then multiply by 100

how do you turn the frequency into a percentage for a circle graph

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35

highest number - lowest number

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desired number of classes

how do you find class width

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36

upper number + lower number

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2

how do you find midpoint

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37

carry the first frequency over, and then add each frequency going down the chart; should end up with total

how do you find cumulative frequency?

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38

add the lowest number to (class width - 1) , and then add one to the beginning of the next row

when determining class limits, what do you do

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