Statistical tests

Question 1

Which statistical test involves looking for associations between measurements from the same sample?

Answer 1

spearman rank (scatter graph with line of best fit)

Question 2

Which statistical test involves looking for differences between mean values?

Answer 2

students t test (bar chart)

Question 3

Which statistical test involves frequencies and finding the number of individuals in particular categories?

Answer 3

x^2 test (chi-squared)

Question 4

How do you write a null hypothesis?

Answer 4

TINS
there is no significant…

Question 5

What does standard deviation show?

Answer 5

When results overlap, there is no significant difference between the values

Question 6

When probability is greater than 0.05…

Answer 6

there is a greater than 5% chance that the results are due to chance

• we accept the null hypothesis
• the difference/correlation is not significant

Question 7

When probability is less than 0.05…

Answer 7

there is a less than 5% chance that the results are due to chance

• we reject the null hypothesis
• the difference/correlation is significant