Conlan claims the true mean price for NY to London airfare on a reputed airline economy class is less than $1000. You wish to test this claim and you have randomly selecteda sample of 25 economy class...

Conlan claims the true mean price for NY to London airfare on a reputed airline economy class is less than $1000. You wish to test this claim and you have randomly selecteda sample of 25 economy class ticket sale for this flight sector with the same airlines and this is your findings.

Average price for the sample = $940

Sample standard deviation = $100

a) Find calculated value of the test statistic to be used in this test