26. (4 points) Suppose a study claims that for healthy adults the mean of red bl

Question

26. (4 points) Suppose a study claims that for healthy adults the mean of red blood cell volume Gn m) per body weight (in kg) is 27.5 ml/kg. Based on a sample of blood test results, you 90% confidence interval for the mean red blood cell volume to be (27.6, 289). what conclusion about the claimed value above? is your A. The claimed value is high because it is above the confidence interval. The claimed value is low because it is below the confidence interval. enough information to form a conclusion. The claimed value is not possible because it does not fall within the confidence interval. B. C. The claimed value cannot be judged because the confidence interval does not provide D. The claimed value is probably right because the confidence interval does not contain it. E. 27. (4 points) A clever way to determine the hand size in three dimensions is to measure the volume (in milliliters [ml) of water displaced when the hand is dipped in a water container. Suppos that the mean hand volume ofall male college students is 425.42 ml and the standard deviatic is 50.97 ml. If 75 male college students are sampled, what is the probability that the avera hand volume in the sample exceeds 435 ml? A. 0.052 B. 0.948 0.188 0.575 0.425

Explanation / Answer

26)

option B is correct ; as claim values is lower than lower confidence interval

27)

option A is correct

for normal distribution z score =(X-)/ here mean=       = 425.42 std deviation   == 50.970 sample size       =n= 75 std error=x=/n= 5.8855

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