MALE

Count 18

MEAN 5.5

STANDARD DEVIATION 1.434572652

STANDARD ERROR 0.338132017

Confidence Interval 95%

Level of Significance 0.05

CONFIDENCE INTERVAL [4.787,6.213]

Lower Limit 4.795

Upper Limit 6.222

FEMALE

Count 4

MEAN 6.285

STANDARD DEVIATION 0.841

STANDARD ERROR 0.420327253

Confidence Interval 95%

Level of Significance 0.05

CONFIDENCE INTERVAL [4.948, 7.622]

Lower Limit 4.947

Upper Limit 7.623

Null hypothesis; Female Whale sharks are larger than male.

Alternative hypothesis; There is no significant difference between sexes

Question 3. Select an appropriate test, calculate the test statistic and p-value using Excel. Test statistic: P-value: