Over the past several months, an adult patient has been treated for tetany (severe muscle spasms). The condition is associated with an average total calcium level below 6 mg/dl. Recently the patient's total calcium level tests gave the following readings (in mg/dl):

9.3 8.8 10.1 8.9 9.4 9.8 10.0 9.9 11.2 12.1

Construct and interpret a 99% confidence interval for the population mean of total calcium in this patient's blood. Does it appear as though this patient still has a calcium deficiency?