A study on the oxygen consumption rate (OCR) of sea cucumbers involved a random sample of size 10 at 15oC and second random sample of size 7 kept at 18oC. If one tested the hypothesis that this range of
Temperature had no effect on the OCR (assume equal variability) the critical value would be (assume $a$ $=$ .05)
A) 1.746
B) 1.761
C) 2.131
D) 2.145

Question

Quizplus · Accepted Answer

Since we are comparing two groups and assuming equal variability, we can use a pooled t-test. The degrees of freedom for the test can be calculated as df = n1 + n2 - 2 = 15. Using a t-table with df = 15 and alpha = 0.05, we find the critical t-value to be 2.131. Therefore, the best choice is C.

A Study on the Oxygen Consumption Rate (OCR) of Sea aaa

A Study on the Oxygen Consumption Rate (OCR) of Sea $a$