Concept explainers
According to a recent survey, 35% of the adult citizens of Mayville have a charge account at Marcy’s Department Store. Mr. Marcy’s nephew is going to trial for embezzlement, and nine jurors are to be randomly selected from the adult citizenry. What is the
The probability value that at least four of the jurors will be charge account holders.
Answer to Problem 7.63CE
The probability value is calculated as
Explanation of Solution
Given information:
Formula used:
The mean of the distribution is calculated by using the following formula:
Where,
Mean:
Number of trials: Mean:
The standard deviation of the distribution is calculated by using the following formula:
The
Where,
The distance from mean measured in standard deviation units:
Mean:
Standard deviation:
By using standardized normal table, the probability value of
Calculation:
The mean of the distribution:
The standard deviation of the distribution is:
To find out the probability value of
The value of
By using the standardized normal distribution table to calculate the probability value that
Conclusion:
Therefore, the probability value is
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Chapter 7 Solutions
Introduction to Business Statistics
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Statistics: The Art and Science of Learning from Data (4th Edition)
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Elementary Statistics: A Step By Step Approach
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