Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. α = 0.05 for a two-tailed test.
Added by Nicholas S.
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In this case, α = 0.05, which means that α/2 = 0.025 for each tail. Show more…
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Banhishikha S.
a=0.05 for a two-tailed test. a= 0.1 for a two- tailed test. Assume that the data has a normal distribution and the numbers of observation is greater than fifty. Find the critical z value used to test a null hypothesis
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Assume that the significance level is ? = 0.05 ; use the given statement and find the P value and critical values. (See Figure 84.) The test statistic of z = 2.00 is obtained when testing the claim that p > 0.5 .
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