Me, Myself and I (4)

Question 1

What is the purpose of a t-test

Answer 1

to determine if the mean of one group is statistically different to the mean of another group. we can only conduct this when there are two groups

Question 2

if the p-value calculated is very small what can be assumed about the null hypothesis

Answer 2

the null hypothesis is most likely incorrect, the data strongly supports the alternative hypothesis

Question 3

what can we extract from a t-test and other statistical information

Answer 3

biological insight from which conclusions can be drawn

Question 4

within our study what will be the two continuous variables

Answer 4

height and age

Question 5

what does a regression model describe

Answer 5

the relationship between a response variable (dependent) and an explanatory variable (independent)

Question 6

what does a line of best fit represent

Answer 6

the relationship between the dependent variable and the independent variable

Question 7

within a graph with a line of best fit what are residuals

Answer 7

the differences between the observed values and those predicted by the regression line

Question 8

within y=mx+c what does each letter stand for

Answer 8

y= predicted value of dependent variable
x= value of dependent value
m= gradient/ slope of the line
c= y-intercept (the value of y when x=0)