Points: 5 14) A company randomly tests 25 components out of a batch of 10,000 to see if the components are defective. The rate of defectives in the past was known to be 0.003. Does this situation result in a binomial distribution? Yes or No (circle one In your own words explain how this situation does or does not meet each of the 4 criteria required for all binomial distributions.
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Points: 5 15) It is known that 41 % of the population in the United States have brown eyes. Find the mean and standard deviation for the number of brown eyed people in a random group of 25 people in the United States. Round your answer to tenths. Show your work below.
t Mean = Standard Deviation =
Using p ± 2G would 7 brown eyed people out of a random group of 25 be considered significantly high, significantly low, or neither significantly high or low? Show your work below.
Points: 5 16) Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). Find the I0 score separating the top 10% from the others. Round to hundredths. Show work below.
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