A random sample of 100 workers at day care center shows mean day care cost Rs.2600 and a standard?

Posted:: 3+ months ago by yousaf sa...
Topics:: random, center, worker, level, standard, care, cost, department, days, day, day care

Details:

... deviation of Rs. 500. verify that the department claim that the mean exceeds Rs.2500 at 5% level of significance

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