Question
You have a reason to believe the number of illegal firearms are equally distributed across eight counties below.You randomly sampled800 cases for those counties from
You have a reason to believe the number of illegal firearms are equally distributed across eight counties below.You randomly sampled800 cases for those counties from the PA state database.And the counts are as shown in the table.How do you conclude at 95% confidence level?Make sureto get the correct critical value from the chart below the table.
Counties Forfeited Illegal Firearms Dauphin 132 Lancaster 118 York 113 Cumberland 108 Chester 92 Bucks 87 Berks 82 Delaware 68
Type I Error (Alpha)
df0.100.050.0250.010.001
12.7063.8415.0246.63510.828
24.6055.9917.3789.21013.816
36.2517.8159.34811.34516.266
47.7799.48811.14313.27718.467
59.23611.07012.83315.08620.515
610.64512.59214.44916.81222.458
712.01714.06716.01318.47524.322
813.36215.50717.53520.09026.125
914.68416.91919.02321.66627.877
1015.98718.30720.48323.20929.588
1117.27519.67521.92024.72531.264
1218.54921.02623.33726.21732.910
1319.81222.36224.73627.68834.528
1421.06423.68526.11929.14136.123
1522.30724.99627.48830.57837.697
1623.54226.29628.84532.00039.252
1724.76927.58730.19133.40940.790
1825.98928.86931.52634.80542.312
1927.20430.14432.85236.19143.820
2028.41231.41034.17037.56645.315
2129.61532.67135.47938.93246.797
2230.81333.92436.78140.28948.268
2332.00735.17238.07641.63849.728
2433.19636.41539.36442.98051.179
2534.38237.65240.64644.31452.620
2635.56338.88541.92345.64254.052
2736.74140.11343.19546.96355.476
2837.91641.33744.46148.27856.892
2939.08742.55745.72249.58858.301
3040.25643.77346.97950.89259.703
3141.42244.98548.23252.19161.098
3242.58546.19449.48053.48662.487
3343.74547.40050.72554.77663.870
3444.90348.60251.96656.06165.247
3546.05949.80253.20357.34266.619
3647.21250.99854.43758.61967.985
3748.36352.19255.66859.89369.347
3849.51353.38456.89661.16270.703
3950.66054.57258.12062.42872.055
4051.80555.75859.34263.69173.402
4152.94956.94260.56164.95074.745
4254.09058.12461.77766.20676.084
4355.23059.30462.99067.45977.419
4456.36960.48164.20168.71078.750
4557.50561.65665.41069.95780.077
4658.64162.83066.61771.20181.400
4759.77464.00167.82172.44382.720
4860.90765.17169.02373.68384.037
4962.03866.33970.22274.91985.351
5063.16767.50571.42076.15486.661
5164.29568.66972.61677.38687.968
5265.42269.83273.81078.61689.272
5366.54870.99375.00279.84390.573
5467.67372.15376.19281.06991.872
5568.79673.31177.38082.29293.168
5669.91974.46878.56783.51394.461
5771.04075.62479.75284.73395.751
5872.16076.77880.93685.95097.039
5973.27977.93182.11787.16698.324
6074.39779.08283.29888.37999.607
6175.51480.23284.47689.591100.888
6276.63081.38185.65490.802102.166
6377.74582.52986.83092.010103.442
6478.86083.67588.00493.217104.716
6579.97384.82189.17794.422105.988
6681.08585.96590.34995.626107.258
6782.19787.10891.51996.828108.526
6883.30888.25092.68998.028109.791
6984.41889.39193.85699.228111.055
7085.52790.53195.023100.425112.317
7186.63591.67096.189101.621113.577
7287.74392.80897.353102.816114.835
7388.85093.94598.516104.010116.092
7489.95695.08199.678105.202117.346
7591.06196.217100.839106.393118.599
7692.16697.351101.999107.583119.850
7793.27098.484103.158108.771121.100
7894.37499.617104.316109.958122.348
7995.476100.749105.473111.144123.594
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