Concept explainers
(a)
To find out what percent of seeds weigh more than
(a)
Answer to Problem 99E
Explanation of Solution
It is give in the question that,
The z -score is then calculated as:
Thus the probability can be calculated as:
Thus, now by using the complement rule we have,
(b)
To find out what is the smallest weight among the remaining seeds if we discard the lightest
(b)
Answer to Problem 99E
Explanation of Solution
It is given in the question that,
Thus, first find out the z -score in table A that corresponds with a probability of
Then the z -score will be as:
Thus, by evaluating it we get,
Thus, by solving this equation for finding the unknown value:
Then we know that the smallest weight among the remaining seeds if we discard the lightest
Chapter 4 Solutions
The Practice of Statistics for AP - 4th Edition
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