Question

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 16 laboratory blood tests during the past year. The sample readings showed an average HC of 14.01 with a standard deviation of 2.17. 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 ? , 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) ?0 :______ ?? : ______(b) Find the test statistic, t = ________

Answer 1

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In(x-4) VIG (14.01 - 14) frondeo Ho, f = 14 2-17 henee observed test statistie, t cumple 0.01843. Answer). given level of significance therefore, we reject it observed It > toysn-1 Nowo, choose x=0.05. Ho at level -0.05 here to sn-1 to.025,15 = 2.131. (from t-table elearly, observed I+1 -0.01843 < 4o; n-= 2.131 Conelusion The poprelation average He appears to be 14 and me aeeept to at level 2=0.05. Х