stat analysis

Question 1

define standard error of the mean

Answer 1

quantifies the accuracy of an estimate against gathered data

Question 2

how is standard error of the mean calculated

Answer 2

standard deviation from the mean/√sample size

Question 3

define descriptive statistics

Answer 3

when numerical data is expanded to form more elaborate explanations

Question 4

define a falsifiable hypothesis

Answer 4

one that can be proved wrong

Question 5

define test statistic

Answer 5

the value used to compare the measured data with that expected from a set assuming H0 is true

Question 6

define p-value (probability value)

Answer 6

the value given to determine whether or not observed results have occurred by chance- a low score= less likely they have occurred by chance

Question 7

what p-value normally indicates that H0 should be rejected

Answer 7

> 0.05 (less than 5%)

Question 8

what does a high test statistic indicate

Answer 8

a low p-value

Question 9

define effect size

Answer 9

the real difference between two means

Question 10

define correlation coefficient

Answer 10

a value between -1 and 1 defining the strength of a particular correlation