In two large populations there are 35 and 30 per cent of fair haired people. Will the difference disappear at 5% level of significance, if samples of 1500 and 1000 are respectively taken from the two populations?
| A. | Difference is significant |
| B. | Significant with condition |
| C. | Difference is not significant |
| D. | Significant with error |
Answer : A Explanation : P1 = 35/100 = 0.35 P2 = 30/100 = 0.30 n1 = 1500, n2 = 1000 P1 - P2 = 0.35 - 0.30 = 0.05 The standard error of difference is –
Hence the difference is significant at 5% level of significance. It is unlikely that the difference will disappear. Answer is (a). |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
