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Independent random samples of the selling prices of houses in four districts were taken. The selling prices (in thousands of dollars) are shown in the accompanying table. Test the null hypothesis that population mean selling prices are the same in all four districts. District ADistrict BDistrict CDistrict D7359766785868470976775806189707663847869 Three real estate agents were each asked to assess the values of five houses in a neighborhood. The results, in thousands of dollars, are given in the table. Prepare the analysis of variance table, and test the null hypothesis that population mean valuations are the same for the three real estate agents.   AgentHouseABC12102182262192190198318318718542272232375242240237  Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: https://products.aspose.com/words/ Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: https://products.aspose.com/words/






Independent random samples of the selling prices of houses in four districts were taken. The selling prices (in thousands of dollars) are shown in the accompanying table. Test the null hypothesis that population mean selling prices are the same in all four districts. District A District B District C District D 73 59 76 67 85 86 84 70 97 67 75 80 61 89 70 76 63 84 78 69 Three real estate agents were each asked to assess the values of five houses in a neighborhood. The results, in thousands of dollars, are given in the table. Prepare the analysis of variance table, and test the null hypothesis that population mean valuations are the same for the three real estate agents.   Agent House A B C 1 210 218 226 2 192 190 198 3 183 187 185 4 227 223 237 5 242 240 237
Answered Same DayDec 26, 2021

Answer To: Statistics Help Please see attached files. If possible please use Megastat Excel Add-In to solve all...

Robert answered on Dec 26 2021
118 Votes
Q1)
Independent random samples of the selling prices of houses in four districts were taken. The selling
prices (in thousan
ds of dollars) are shown in the accompanying table. Test the null hypothesis that
population mean selling prices are the same in all four districts.
District
A
District
B
District
C
District
D
73

59

76

67
85

86

84

70
97

67

75

80
61

89

70

76
63

84

78

69

Assumptions:
 Independence of cases
 the distributions of the residuals are normal
 Equality of variances, called homoscedasticity

Analysis:
Ho: there is no significant difference in the mean selling prices across 4 districts.
H1: at least one of the mean selling prices across 4 districts differ significantly.
With F = .192 and p-value > 0.05, I fail to reject ho and conclude that there is no significant difference in
the mean selling prices across 4 districts.
Hence here there is no need to apply Post Hoc analysis.
Output:
ANOVA: Single Factor

SUMMARY
Groups Count Sum Average Variance
District A 5 379 75.8 231.2000
District B 5 385 77 174.5000
District C 5 383 76.6 25.8000
District D 5 362 72.4 29.3000
...
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