Question

for a t - curve with df = 39, find each t - value in parts (a) through (f) below, and illustrate the results graphically.
click the icon to view a partial t - table.
a. the t - value having area 0.05 to its right
(round to three decimal places as needed.)
choose the correct graph below.

Explanation:

Step1: Locate the row for df = 39

In the t - table, find the row corresponding to degrees of freedom \(df = 39\).

Step2: Locate the column for one - tailed area 0.05

In the t - table, for a one - tailed test with area \(0.05\) to the right, find the corresponding value in the row \(df = 39\).

Answer:

\(t=1.685\) (rounded to three decimal places). For the graph, option A is correct as it shows the area \(0.05\) to the right of the \(t\) - value.