1. The chi-square test for goodness of fit - Expected frequencies Aa Aa Suppose

Question

1. The chi-square test for goodness of fit - Expected frequencies Aa Aa Suppose that the null hypothesis for a chi-square test states that the population is distributed into five categories with the following proportions (percentages): Category A B CD E Proportion under Ho 30% 25% 20% 15% 10% Under the null hypothesis, what are the expected frequencies for each category if a random sample of size n 140 is measured? Category Expected Frequency Flash Player WIN 30,0,0,113 Q3:3.34.12004-2016 Aplia All rights 2013 cengege Learning except as noted. All rights reserved Check Answer Save & Continue

Explanation / Answer

Expected value: E(x)= N*P(x)

Category Proportion E(x)=NP Expected frequency A 30% 140*0.30 42 B 25% 140*0.25 35 C 20% 140*0.20 28 D 15% 140*0.15 21 E 10% 140*0.10 14

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