The hemoglobin count (HC) in grams per 100 milliliters of whole blood is approximately normally distributed with population mean 14 for healthy adult women. Suppose a female patient has had 19 laboratory blood tests during the past year. Her average HC is 13.49 with s = 2.48. Is there evidence that her average HC is not 14? (a) State the null and alternative hypotheses: (Type "mu" for the symbol μ� , e.g. mu >> 1 for the mean is greater than 1, mu << 1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1) H0�0 : equation editor Equation Editor Ha�� : equation editor Equation Editor (b) Find the test statistic (give to at least 3 decimal places), t = equation editor Equation Editor (c) Answer the question: Is there evidence that her average HC is not 14? (Use a 1% level of significance) (Type: Yes or No)
The hemoglobin count (HC) in grams per 100 milliliters of whole blood is approximately
(a) State the null and alternative hypotheses: (Type "mu" for the symbol μ� , e.g. mu >> 1 for the mean is greater than 1, mu << 1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1)
H0�0 :
Ha�� :
(b) Find the test statistic (give to at least 3 decimal places), t =
(c) Answer the question: Is there evidence that her average HC is not 14? (Use a 1% level of significance)
(Type: Yes or No)
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