The owner of limp pines resort wanted to know the average age of its clients. a random sample of 25 tourists is taken. it shows a mean age of 46 years with a standard deviation of 5 years. the margin of error of a 98% ci for the true mean client age is approximately: select one: a. ± 1.711 years. b. ± 2.326 years. c. ± 2.492 years. d. ± 2.797 years.