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Assume That a Hypothesis Test of the Given Claim Will χ2\chi ^ { 2 }

Question 62

Multiple Choice

Assume that a hypothesis test of the given claim will be conducted. Identify the type I or type II error for the test.
-For large numbers of degrees of freedom, the critical χ2\chi ^ { 2 } values can be approximated as follows:
χ2=12(z+2k1) 2\chi ^ { 2 } = \frac { 1 } { 2 } ( z + \sqrt { 2 k - 1 } ) ^ { 2 }
where k\mathrm { k } is the number of degrees of freedom and z\mathrm { z } is the critical value. To find the lower critical value, the negative z-value is used, to find the upper critical value, the positive z-value is used. Use this approximation to estimate the critical value of χ2\chi ^ { 2 } in a right-tailed hypothesis test with n=146\mathrm { n } = 146 and α=0.01\alpha = 0.01


A) χ2192.742\chi ^ { 2 } \approx 192.742
B) χ2186.824\chi ^ { 2 } \approx 186.824
C) χ2187.961\chi ^ { 2 } \approx 187.961
D) χ2191.590\chi ^ { 2 } \approx 191.590

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