MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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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
10.1 | 9.2 | 10.7 | 8.5 | 9.4 | 9.8 | 10.0 | 9.9 | 11.2 | 12.1 |
(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.)
x_____= mg/dls_____ = 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/dlupper limit ______ mg/dl
(c) Based on your results in part (b), do you think this patient still has a calcium deficiency? Explain.
a.) Yes. This confidence interval suggests that the patient may still have a calcium deficiency.
b.) Yes. This confidence interval suggests that the patient no longer has a calcium deficiency.
c.) No. This confidence interval suggests that the patient may still have a calcium deficiency.
d.) No. This confidence interval suggests that the patient no longer has a calcium deficiency.
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