exponential uniform Question 20 20. A large hospital wholesaler, as part of an assessment of workplace safety gave a random sample of 64 of its warehouse employees a test (measured on a 0 to 100 point scale) on safety procedures. For that sample of employees, the mean test score was 75 points, with a sample standard deviation of 15 points. To consfruct the 95\% eontrdelice interval for the meall lest score of all the company's wareliousc entiptoyees. we should: HSC. Evalue 1998 from the t table. hecause we have the sample standard doviation Luse t yalue 1.669 from the t table. benausa we have the sample standard devation alle 1.845 from the 2 table. because we have the population standard Wse z-valuet 1960 from the z table, because we have the population standard