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Exam 2 sample
... What is the distribution of ? Can you use normal distribution approximate it? If it is possible, please find P( >21) 6. Suppose an automaker conducts mileage tests on a sample of 50 of its new mid-size cars and obtains the sample mean with x =31.56. Assuming population standard deviation σ=0.8. Plea ...
... What is the distribution of ? Can you use normal distribution approximate it? If it is possible, please find P( >21) 6. Suppose an automaker conducts mileage tests on a sample of 50 of its new mid-size cars and obtains the sample mean with x =31.56. Assuming population standard deviation σ=0.8. Plea ...
Example of Short-Cut and Step Deviation
... It is easy to calculate and simple to understand. It is based on all observations of the given data. It is capable of being treated mathematically hence it is widely used in statistical analysis. • Arithmetic mean can be computed even if the distribution is not known but some of the observation and ...
... It is easy to calculate and simple to understand. It is based on all observations of the given data. It is capable of being treated mathematically hence it is widely used in statistical analysis. • Arithmetic mean can be computed even if the distribution is not known but some of the observation and ...
Name: Date: Period: ______ CHS Statistics Chapter 2 Review The
... 12. A data set consists of 20 values that are fairly close together. Another value is included, but this new value is an outlier. How is the standard deviation affected by the outlier (No effect, small effect, large effect)? Explain. ...
... 12. A data set consists of 20 values that are fairly close together. Another value is included, but this new value is an outlier. How is the standard deviation affected by the outlier (No effect, small effect, large effect)? Explain. ...