A tax accountant would like to test the claim that the proportion of individuals who owe when filing their taxes is less than 0.20. If the z− test statistic was calculated as z=−2.11, does the tax accountant have enough evidence to reject the null hypothesis? Assume α=0.01.
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** The null hypothesis (H0) is that the proportion of individuals who owe when filing their taxes is equal to 0.20 (p = 0.20). The alternative hypothesis (H1) is that the proportion is less than 0.20 (p < 0.20). Show more…
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A tax accountant would like to test the claim that the proportion of individuals who owe when filing their taxes is greater than 0.20. If the z-test statistic was calculated as z = 1.94, does the tax accountant have enough evidence to reject the null hypothesis? Assume α = 0.05.
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