The average speed of greyhound dogs is about 18.8 meters per second. A particular
greyhound breeder claims that her dogs are faster than the average greyhound. In a
sample of 45 of her dogs, they ran, on the average, 19.2 meters per second with a
standard deviation of 1.4. Is her claim correct if she is willing to accept an error rate of
2.5 out of 100?
A) Yes, because 1.92 falls in the noncritical region
B) No, because 0.04 falls in the noncritical region
C) Yes, because 0.04 falls in the noncritical region
D) No, because 1.92 falls in the noncritical region
greyhound breeder claims that her dogs are faster than the average greyhound. In a
sample of 45 of her dogs, they ran, on the average, 19.2 meters per second with a
standard deviation of 1.4. Is her claim correct if she is willing to accept an error rate of
2.5 out of 100?
A) Yes, because 1.92 falls in the noncritical region
B) No, because 0.04 falls in the noncritical region
C) Yes, because 0.04 falls in the noncritical region
D) No, because 1.92 falls in the noncritical region
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The correct answer is D, check your previous question for the explanation:
http://answers.yahoo.com/question/index;…
http://answers.yahoo.com/question/index;…
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I saw what I did wrong on the previous question you refereed to. Can you help me by working this one out? I still do not get D for the answer when I try to work it out.
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