Statistical Thinking

Question 1

How to plan your study?

Answer 1

Ask a testable research question and how you want to collect the data

Question 2

Examining the data

Answer 2

What’s the best way to examine it, with graphs relevant, descriptive statistics, patterns?(what you should look for)

Question 3

Inferring the data

Answer 3

What is the probability that some thing just happened by chance

Question 4

Drawing a conclusion

Answer 4

What conclusion did you come to, cause an affect (if one variable is causing changes to another variable, versus other variables that may relate to the two variables)

Question 5

Statistics provide a ______basis for conclusions drawn

Answer 5

Quantitative

Question 6

Descriptive statistics include

Answer 6

Frequency distribution’s, rank order (low to high) score, create intervals, note frequencies

Question 7

Measures of central tendency

Answer 7

I mean, median, mode

Question 8

Mean

Answer 8

Average score, some of scores divided by total number of scores

Question 9

Median

Answer 9

Middle score, splits in half

Question 10

Mode

Answer 10

Occurs most often

Question 11

Measures of variability, Range

Answer 11

Difference between highest and lowest scores of the distribution, subtraction

Question 12

Standard deviation

Answer 12

Standard of dispersion of a set of values

Question 13

Low standard deviation

Answer 13

Closer to the mean

Question 14

High standard deviation

Answer 14

Spread out over wider range

Question 15

Inferential statistics

Answer 15

Tells us which entrances can be made from her sample and what conclusion we can drive from it, example seen the evidence and if we should really care about it

Question 16

P value

Answer 16

Observing the particular outcome of a sample, or more extreme, under a conjecture about larger population or process

Question 17

Statistical significance

Answer 17

P is less than 0.05 a.k.a. 5%

It is the cut off value for determining if something should be believed to be not a fluke

Question 18

When with stricter probability be used

Answer 18

When making a vaccine

Question 19

Sample

Answer 19

Collection of individuals from which we collect data

Question 20

Random sampling

Answer 20

Everyone can get chosen equally, computer chooses

Question 21

Parameter

Answer 21

Numerical result summarizing population example mean or proportion