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# Book5 - Group Belief X^2 Cell Yes Maybe No Yes Maybe No...

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Manzur Choudhury BA 3360 Problem No. 5 A student Survey at Penn State asked a number of people about their belief in ESP. The results of that survey are presented below ( Minitab Student Handbook, p. 226). Group Belief Yes Maybe No Sum Artist 67 41 6 114 Non-Artist 129 183 32 344 Totals 196 224 38 458 Analysis: Use alpha = 0.05. Ho tells us that the expected value for the Yes Belief/Artist cell is (114/458)(196/458)458 48.79 and a cell X^2 of X^2cell=(O-E)^2/E 6.8 3.9 continuing to use Ho, we get the following table of expected values

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Unformatted text preview: Group Belief X^2 Cell Yes Maybe No Yes Maybe No Artist 48.79 55.76 9.46 6.8 3.9 1.26 non artist 147.21 168.24 28.54 2.25 1.29 0.42 Which gives X^2 = 6.800076+3.904973608+1.264609297+2.253520698+1.294097461+.4190869076 15.94 with Df = 2, the critical value = 5.991 We reject the Ho, since X^2>test statistics. the p-value for this problem is (using in Excell formula CHIDIST()) 6...
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Book5 - Group Belief X^2 Cell Yes Maybe No Yes Maybe No...

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