A sports scientist conducted a study using a Wilcoxon Signed-Ranks test to investigate whether a new high-intensity interval training (HIIT) protocol significantly improves the anaerobic threshold (measured in Watts) of elite cyclists compared to their baseline performance.

The Wilcoxon test yielded an observed (calculated) value of $T = 7$ for $N = 10$ participants.

Critical values of $T\,$ for a two-tailed test where $N = 10$

Significance Level (two-tailed)	0.10	0.05	0.01
Critical value	10	8	3

Using the critical values table above, explain whether the sports scientist has found a significant difference or not.

The Wilcoxon test yielded an observed (calculated) value of $T = 7$ for $N = 10$ participants.

Critical values of $T\,$ for a two-tailed test where $N = 10$

Significance Level (two-tailed)	0.10	0.05	0.01
Critical value	10	8	3

Using the critical values table above, explain whether the sports scientist has found a significant difference or not.

Data recording, analysis and presentation

Question 70

Critical values of $T\,$ for a two-tailed test where $N = 10$

Markscheme

Data recording, analysis and presentation

Question 70

Critical values of $T\,$ for a two-tailed test where $N = 10$

Markscheme

Data recording, analysis and presentation

Question 70

Critical values of T T\,T for a two-tailed test where N=10N = 10N=10

Data recording, analysis and presentation Questions

Data recording, analysis and presentation

Question 70

Critical values of T T\,T for a two-tailed test where N=10N = 10N=10

Data recording, analysis and presentation Questions

Critical values of $T\,$ for a two-tailed test where $N = 10$

Critical values of $T\,$ for a two-tailed test where $N = 10$