Household Income 90 25 85 54 62 38 38 Score Expected prob Expected Observed (Obs

Question

Household Income 90 25 85 54 62 38 38 Score Expected prob Expected Observed (Observed-Expected)^2/Expected 55 0.2 <20% 0.2 62 0.3 20% to 30% 0.1 210 0.4 30% to 40% 0.1 19 0.5 40% - 50% 0.1 38 0.6 50% to 60% 0.1 57 0.7 60% - 70% 0.1 78 0.8 70%-80% 0.1 98 0.9 <80-90% 0.1 30 1 <100% Infinity 0.1 19 1 62 66 90 25 38 14 65 77 110 22 18 180 52 44 17 45 99 250 78 58 35 57 45 37 58 62 44 35 78 35 82 94 58 (Q33-Q35) We want to test if the annual household income in a small Midwestern city is not normally distributed. We use the sample data on the fifth sheet labeled "Household Income" in the INFO1020 Final Exam DataFile.xlsx" to conduct this goodness-of-fit test for normality. Question 33 3 pts If I plan to do a goodness of fit test with the normal distribution against all data. What is the correct alternative hypothesis for this question? The data does not match the normal distribution at the population level Not all the means are equal The means are all equal O The data matches the normal distribution at the population level

Explanation / Answer

Question 33
The alternative hypothesis should be
The data does not match the normal distribution at the population level

Question 34
The appropriate test is,
Chi square

Question 35
Degree of freedom = Number of groups - 1
= 9 - 1 = 8

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