Over the past several months, an adult patient has been treated for tetany (seve
ID: 3361786 • Letter: O
Question
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.
(a) Use a calculator with mean and sample standard deviation keys to find the sample mean reading x and the sample standard deviation s. (Round your answers to two decimal places.)
(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.) Find the upper and lower limits.
Explanation / Answer
The statistical software output for this problem is:
Summary statistics:
99.9% confidence interval results:
Hence,
a) Mean = 10.03
SD = 0.96
b) 99.9% confidence interval:
(8.58, 11.48)
Column Mean Std. dev. Data 10.03 0.96153812Related Questions
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