Over the past several months, an adult patient has been treated for tetany (severe muscle spasms). This condition is associated with an average total calcium level below 6 mg/dl. Recently, the...

(a)

Use a calculator with mean and sample standard deviation keys to find the sample mean reading and the sample standard deviation
s. (in mg/dl; round your answers to two decimal places.)

= mg/dl


s
= mg/dl

(b)

Find a 99.9% confidence interval for the population mean of total calcium in this patient's blood. (in mg/dl; round your answer to two decimal places.)

lower limit         mg/dl

upper limit         mg/dl