Obtain the critical value for a hypothesis test, Basic Statistics

Obtain the critical value (or values) for a hypothesis test for the mean if you conduct:

(a) an upper tail "z" test at the 1% level of significance.

(b) a two-tailed "z" test at the 1% level of significance.

(c) a lower tail "z" test at the 5% level of significance.

(d) a two-tailed "z" test at the 5% level of significance.

(e) an upper tail "z" test at the 10% level of significance.

(f) a upper tail "t" test with 17 d.f. at the 5% level of significance.

(g) a two-tailed "t" test with 17 d.f. at the 5% level of significance.

(h) a lower tail "t" test with 6 d.f. at the 1% level of significance.

(i) a two-tailed "t" test with 6 d.f. at the 10% level of significance.

(j) an upper tail "t" test with 6 d.f. at the 5% level of significance.

[Hint: remember it is often easier to read key "z" values from a t table than from a standard normal table.]

Posted Date: 3/25/2013 3:44:47 AM | Location : United States







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