Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean μ = 4.6 and standard deviation σ = 0.4.
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Let x represent red blood cell (RBC) count in millions per cubic millimeter of whole blood. Suppose that for healthy females, x has an approximately normal distribution with mean μ = 5.7 and standard deviation σ = 0.5 Convert the following x interval from a laboratory test to a z interval. x < 6.3 Enter your answer as follows: z<#
Ahmet Y.
Adi S.
Let $x$ be a random variable that represents red blood cell (RBC) count in millions of cells per cubic millimeter of whole blood. Then $x$ has a distribution that is approximately normal. For the population of healthy female adults, the mean of the $x$ distribution is about 4.8 (based on information from Diagnostic Tests with Nursing Implications, Springhouse Corporation). Suppose that a female patient has taken six laboratory blood tests over the past several months and that the RBC count data sent to the patient's doctor are $$4.9 \quad 4.2 \quad 4.5 \quad 4.1 \quad 4.4 \quad 4.3$$ i. Use a calculator with sample mean and sample standard deviation keys to verify that $\bar{x}=4.40$ and $s \approx 0.28$ ii. Do the given data indicate that the population mean RBC count for this patient is lower than $4.8 ?$ Use $\alpha=0.05.$
Shaiju T.
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