SOLUTION: A female patient has had her red blood cell count tested on 6 occasions. A mean of 4.4 with sample standard deviation, s, of 0.28 was found. Generally, healthy, female adults have

Question 1106941: A female patient has had her red blood cell count tested on 6 occasions. A mean of 4.4 with sample standard deviation, s, of 0.28 was found. Generally, healthy, female adults have a red blood cell count of 4.8. Conduct a hypothesis test to determine if the red blood cell count for this patient is lower than normal. (Use a = 0.05.)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Ho: mean is 4.8
Ha: mean is not 4.8
alpha is 0.05
test stat is a t (0.975 df=5)=(xbar-x)/s/sqrt(n)
critical value is |t|>2.571
calculation t=(4.4-4.8)/0.28/sqrt(6)
=-0.4*sqrt(6)/0.28
=-3.50
reject Ho, rbc is lower than normal.
(p-value is 0.017)
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