Over the past several months an adult patient has been treated for tetany severe muscle spasms This condition is associated with

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 X 9 10 S 8 40 10 50 9 50 9 40 9 80 USE SALT 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 four decimal places mg dl mg dl 10 00 9 90 11 20 12 10 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 upper limit mg dl mg dl c Based on your results in part b do you think this patient still has a calcium deficiency Explain Yes This confidence interval suggests that the patient may still have a calcium deficiency O Yes This confidence interval suggests that the patient no longer has a calcium deficiency No This confidence interval suggests that the patient may still have a calcium deficiency No This confidence interval suggests that the patient no longer has a calcium deficiency

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