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
patient's total calcium tests gave the following readings (in
mg/dl). Assume that the population of x values has an
approximately normal distribution.
9.3 |
9.6 |
10.9 |
9.5 |
9.4 |
9.8 |
10.0 |
9.9 |
11.2 |
12.1 |
(b) Find a 99.9% confidence interval for the population mean of
total calcium in this patient's blood. (Round your answer to two
decimal places.) |
|
lower limit |
mg/dl |
upper limit |
mg/dl |