document.write( "Question 873743: Let x be a random variable representing dividend yield of Australian bank stocks. We may assume that x has a normal distribution with = 2.8%. A random sample of 16 Australian bank stocks has a sample mean dividend yield of 8.91%. For the entire Australian stock market, the mean dividend yield is = 6.4%. If you wanted to test, at a .05 level of significance, to determine if these data indicate that the dividend yield of all Australian bank stocks is higher than 6.4% what is the critical value that you would use? \n" ); document.write( "
Algebra.Com's Answer #527075 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi
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document.write( "DF = 15, critical value = 2.13 for .05 level of significance\r
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document.write( "DF	Probability, p				
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document.write( "	0.1	0.05	0.01	0.001	
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document.write( "1	6.31	12.71	63.66	636.62	1
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document.write( "2	2.92	4.3	9.93	31.6	2
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document.write( "3	2.35	3.18	5.84	12.92	3
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document.write( "4	2.13	2.78	4.6	8.61	4
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document.write( "5	2.02	2.57	4.03	6.87	5
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document.write( "6	1.94	2.45	3.71	5.96	6
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document.write( "7	1.89	2.37	3.5	5.41	7
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document.write( "8	1.86	2.31	3.36	5.04	8
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document.write( "9	1.83	2.26	3.25	4.78	9
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document.write( "10	1.81	2.23	3.17	4.59	10
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document.write( "11	1.8	2.2	3.11	4.44	11
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document.write( "12	1.78	2.18	3.06	4.32	12
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document.write( "13	1.77	2.16	3.01	4.22	13
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document.write( "14	1.76	2.14	2.98	4.14	14
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document.write( "15	1.75	2.13	2.95	4.07	15
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document.write( "16	1.75	2.12	2.92	4.02	16
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