need help

Over the past several months, an adult patient has been trea Recently the patient's total calcium tests gave the following than average to yopirately normal distribution. 9.9 9.0 10.9 8.5 9.4 9.8 107 (a) Use a calculator with mean and sample standard decimal places.) sample standard deviation s. (in mg/di; round your answers to two X Img/di Img/d! (b) Find a 99.9% confidence interval for the population (in ma dis round your answer to two decimal places.) lower limit mg/dl upper limit mg/ dl efficiency? Explain