Stats

Question 1

Name the 3 hypothesis testing using stats

Answer 1

• T- test
• Chi squared
• Spearman’s Rank

Question 2

What does the T-test, test for

Answer 2

Tests for significant difference between mean values

Question 3

What does the Chi squared test for

Answer 3

Tests for the significant difference between observed and expected

Question 4

What does Spearman’s Rank test for

Answer 4

Tests for significant correlation

Question 5

What are the 4 words that always start a null hypothesis in Biology

Answer 5

There is no significant …….

Question 6

In Biology what is the significance level

Answer 6

5%

Question 7

The Spearman’s Rank test finds a probability of 0.04, write a conclusion containing the words probability and chance

Answer 7

• There is a significant correlation
• Reject null hypothesis
• The probability that the correlation is due to chance is 4%