Vocab
Margin of Error
Types of Surveys
RANDOM NUMBERS
EVERYTHING ELSE
100
What is a statistic?
A number that describes a sample.
100
Sample size of 10
31.62%
100
You poll 100 at Stop & Shop
Convenience Sample
100
Line 104 first 5 2 digit codes
52 71 13 88 89
100
What is a 5 number summary
min, Q1, median, Q3, max
200
What is a margin of error?
This is the percent range that answer can fall in above or below the stated percentage.
200
Sample size of 23
20.851%
200
Of 200 students a group of 30 students gave their opinion of their free will.
Volunteer Sample
200
Line 123 first 5 3 digit codes
54 58 08 15 07
200
A margin of error is similar to what concept
Standard Deviation
300
What does SRS stand for?
Simple Random Sample
300
Sample size of 473
4.6%
300
of 1000 teachers 50 were selected as a representative through a ID lottery
Random Sample
300
Range of numbers 001 - 150, use Line 149 who is the first person number selected?
052
300
What combination of Bias and Variability do you want?
Low Bias / Low Variability
400
What is variabliltiy
The range of answers that a sample gives
400
Sample size of 12563
.89%
400
Walk around New Haven on plowed well kept streets asking people their opinion about the city ability to deal with snow.
Volunteer and Convience
400
Range of numbers 00 - 49, use Line 133 who is the first 3 numbers selected?
45 40 04
400
Which is larger a population or sample
Population
500
what is a Confidence Statement?
A statement made to the declares how much the information is trusted and includes the range of answers.
500
Is it possible to have a margin of error of 0%
NO
500
of 2000 staff members a company wants to compares the opinions of the day shift works and night shift works. 25% of each group were randomly selected to complete the survey.
Simple Random Sample
500
What is the correct way to use the Table B on page T-2
Wait... What? There is a correct way?
500
The point of statistics is what?
Is to you math to support your claim.
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