A company is studying the number of daily debit card

Reference no: EM13618544

Overproduction of uric acid in the body can be an indication of cell breakdown. This may be an advance indication of illness such as gout, leukemia, or lymphoma. Over a period of months, an adult male patient has taken seven blood tests for uric acid. The mean concentration was x = 5.35 mg/dl. The distribution of uric acid in healthy adult males can be assumed to be normal, with standard deviation = 1.87 mg/dl.

a) Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood (round answers to two decimal places).

Lower limit =

Upper limit =

Marign of error =

b) What conditions are necessary for your calculations? (Select all that apply)

( ) n is large

( ) standard deviation is unknown

( ) standard deviation is known

( ) uniform distribution of uric acid

( ) normal distribution of uric acid

c) Find the sample size necessary for a 95% confidence level with maximal error of estimate E = 1.20 for the mean concentration of uric acid in this patient's blood (round answers to nearest whole number)

Reference no: EM13618544

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