I Scientific company has a system than leases research quipment for a period of 7 days. Being reevaluated in view of a possible new system that could be either longer or shorter Join 7 Days, Equipment leasing records were being consulted to determine the lease periods actually used by various laprotics A random sample of nine records reaulect the following leave periods in days : 8, 41, 6, 1 5. 3, 2, 7, 9. Test the null hypothesis. with T at the, 05 level of significance