HSS (done perman)

Question 1

assumption of statistics

Answer 1

all knowledge is uncertain

Question 2

primary goal of statistics

Answer 2

measure degree of uncertainty of observation

Question 3

mean (show via example)

Answer 3

mean of 1, 2, 3, 4

10/4 = 2.5

Question 4

median (show via example)

Answer 4

median of 1,2,2,4,8,16

is 3

Question 5

mode def

Answer 5

most frequently occurring value in sample

ex: in sample of 1,2,3,4
mode is 1,2,3,4

ex: in sample of 1,2,2,2
mode is 2

Question 6

inductivism process

example

Answer 6

1 observe
2 make hypothesis about observation
3 compare hypotheses and choose most probable

ex: observe stuff via physical exam -> coming up with diagnosis

Question 7

what was the theory that countered inductivism

Answer 7

falsification

• deductive
• you can always falsify (prove something is false) but you can never prove something is 100% true

Question 8

rel of p value and null hypothesis

Answer 8

use p value as basis for rejecting null hypothesis

Question 9

is p value a short/long term measure

Answer 9

p - short

Question 10

what is the p value fallacy

Answer 10

notion that p value (derived for short term) can provide a long term answer

Question 11

non parametric def

Answer 11

not make assumption based on a distribution

Question 12

if have only two choices, what distribution should you draw

Answer 12

binominal

Question 13

if you are graphing “counts”/numbers, you should draw what distribution

Answer 13

Poisson distribution

Question 14

p value depends on what

Answer 14

sample size

Question 15

read: p value says little about prob of observed value being true

Answer 15

-

Question 16

90% confidence interval uses an alpha of what

Answer 16

alpha = 0.1