Minitab

Alice Wisener
Assignment #10
November 22, 2011

Chapter 26, p. 712, #8

The Minitab output for the Chi-Square Test for Goodness of Fit:

Chi-Square Goodness-of-Fit Test for Observed Counts inVariable: number of weap

Test Contribution
Category Observed Proportion Expected to Chi-Sq
1 966 0.634 1110.77 18.868
2390 0.131 229.51 112.222
3 136 0.168 294.34 85.176
4 260 0.067 117.38 173.272

N DF Chi-Sq P-Value
17523 389.538 0.000

Statistical conclusion: Since the p-value is small, we reject the null hypothesis

Conclusion in context: The data indicates that the distribution of weapon use ratesnationwide is not the same as the distribution of weapon use rates against women.

Chapter 26, p. 712, #10

The Minitab output for the Chi-Square Test for Goodness of Fit:

Chi-SquareGoodness-of-Fit Test for Observed Counts in Variable: count

Test Contribution
Category Observed Proportion Expected to Chi-Sq
1 99959 0.1100000 0.01681
2 99758 0.1 100000 0.58564
3 100026 0.1 100000 0.00676
4 100229 0.1 100000 0.52441
5100230 0.1 100000 0.52900
6 100359 0.1 100000 1.28881
7 99548 0.1 100000 2.04304
8 99800 0.1 1000000.40000
9 99985 0.1 100000 0.00225
10 100106 0.1 100000 0.11236

N DF Chi-Sq P-Value
1000000 9 5.50908 0.788

Statisticalconclusion: Since the p-value is large, we will not reject the null hypothesis

Conclusion in context: The data indicates that the distribution of digits is uniform in the decimal representation...