A researcher collects data from a group of 21 people at Time 1 and Time 2. Assuming α = .05 (two-tailed) , the critical value is ______.

A) 2.096
B) 2.086
C) 2.845
D) 2.528

Question

A researcher collects data from a group of 21 people at Time 1 and Time 2. Assuming α = .05 (two-tailed) , the critical value is ______.A)  2.096B)  2.086C)  2.845D)  2.528

Nathanael Young · Accepted Answer

Final Answer : B, Explanation :  The critical value for a two-tailed test with α = .05 and 20 degrees of freedom (21 people - 1) is 2.086, as determined from a t-distribution table or calculator.

A researcher collects data from a group of 21 people at Time 1 and Time 2. Assuming α = .05 (two-tailed) , the critical value is ______.

A) 2.096
B) 2.086
C) 2.845
D) 2.528

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