Reference no: EM132505453

The HR manager of a large department store believes the number of resignations per week of casual staff can be approximated by a normal distribution with a mean 37.1 resignations per week and variance of 61 resignations per week squared. From a large amount of historical data available on the HR data base regarding weekly resignations for casuals, a sample of 52 weeks was selected. Between which two values should the middle 90% of all sample averages of resignations per week of casual staff lie? Give only the upper value for this range and state the answer to 2 decimal places.