Use a Poisson Approximation to the Binomial to Work Out

question 1

Multiple Choice

Use a poisson approximation to the binomial to work out the probability that there will be less than two faulty electric motors in a box of 100 with a defect rate of 0.5% (as a percentage, 1 decimal place)

• A) 3.8%
• B) 4.0%
• C) 4.2%
• D) 4.4%

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Definitions:

Sample Correlation

A measure that indicates the degree to which two variables change together, based on data drawn from a sample of the population.

Test Statistic

A value calculated from sample data during a statistical hypothesis test to determine the p-value or to compare against a critical value.

Prediction Interval

An estimated range of values within which a future observation is expected to fall, with a certain probability.

Independent Variable

A variable in an experiment or model that is manipulated or changed to assess its effects on a dependent variable.