Evaluation

Question 1

Conclusions from data

Answer 1

Valid, specific

Question 2

Spearmans rank

Answer 2

1= strong positive and comp to critical value, causal relation
Correlation could mean 3rd v

Question 3

Uncertainty

Answer 3

Amount of error in mst due to limits in sensitivity of app
+-= range of true v so margin of error

Question 4

%error

Answer 4

Uncertainty ÷reading x 100

Question 5

Minimise errors

Answer 5

Most sensitive equipment
Lower it by %change = half unc

Question 6

Evaluation

Answer 6

Repeatability = enough readings, repeats, similar data again?
Reproducibility = compare, other sci same results?
Validity = does it answ q
Precise, accurate eg thermos con wb

Question 7

Limitations in procedure

Answer 7

Unethical, degree of accuracy, less rep= less reliable, reactants reach req temp, small p cant be gen to wider, res of app,

Question 8

Error types

Answer 8

Random= judgement so red by repeats
Systematic = faulty eq= moerror