Answers created by Anesee

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• How are the measure of central tendency and measure of dispersion complementary to each other in describing data?
  
• A distribution has a standard deviation of #sigma=8#. How do you find the z-score below the mean by 8 points?
  
• Find the z-score such that the area under the standard normal curve to the left is 0.73?
  
• The mean annual cost of car insurance is $939. The standard deviation is $300. What is the standard deviation of x-bar?
  
• How do I find the range of lengths in this question?
  
• In a one-way ANOVA, if the test is conducted and the null hypothesis is rejected, what does this indicate?
  
• How do you find the correlation of a scatter plot?
  
• What is the easiest method to cal ulage standard deviation?
  
• How do you create statistical hypotheses for an ANOVA test?
  
• Why are measures of central tendency essential to descriptive statistics?