Question

a random sample of 1000 workers from south india show that their mean wages are rs.47 per week with a standard deviation of rs.28 a random sample of 1500 workers from north india gives a mean wage of ra.49 per week wi5th a standard deviation of rs.40 is three any significant difference between their mean level of wages

Answer 1

The answer is available in the book financial management - statistics for managers page no: 93 under Two Means.