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The hemoglobin count (HC) in grams per 100 milliliters of whole blood is approximately normally distributed...

The hemoglobin count (HC) in grams per 100 milliliters of whole blood is approximately normally distributed with a population mean of 14 for healthy adult women. Suppose a particular female patient has had 8 laboratory blood tests during the past year. The sample readings showed an average HC of 11.48 with a standard deviation of 2.52. Does it appear that the population average HC for this patient 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 :  
HA :

(b) Find the test statistic, t =  

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