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Q.No.3 (a) Explain the following: 9+9 (i). Null Hypothesis (ii) Alternative Hypothesis (iii) Type-I error. (b) A random sample of 100 workers with children in

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Q.No.3 (a) Explain the following: 9+9 (i). Null Hypothesis (ii) Alternative Hypothesis (iii) Type-I error. (b) A random sample of 100 workers with children in day care shows a mean day-care cost Rs. 2600and standard deviation of Rs. 500. Verify the department's claim that the mean exceeds Rs. 2500 at the 0.05 level of significance with this information

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