# Question: a Find the t value such that the area in the

(a) Find the t-value such that the area in the right tail is 0.10 with 25 degrees of freedom.

(b) Find the t-value such that the area in the right tail is 0.05 with 30 degrees of freedom.

(c) Find the t-value such that the area left of thet-value is 0.01 with 18 degrees of freedom.

(d) Find the criticalt-value that corresponds to 90% conﬁdence. Assume 20 degrees of freedom.

researcher’s analysis? Explain.

(b) Find the t-value such that the area in the right tail is 0.05 with 30 degrees of freedom.

(c) Find the t-value such that the area left of thet-value is 0.01 with 18 degrees of freedom.

(d) Find the criticalt-value that corresponds to 90% conﬁdence. Assume 20 degrees of freedom.

researcher’s analysis? Explain.

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