Mathematics – Statistics

   Directions: For each of the following, identify the method used to collect the data (census, systematic, convenience, voluntary response, cluster, stratified, or simple random).  Explain why you chose your answer and if the method will represent the population of

Practice Problems Section 1C 1. Define each of the following and give an example of each. a) Population f) Response Bias b) Census g) Sampling Bias c) Sample h) Deliberate Bias d) Bias i) Non-response Bias e) Question Bias Directions

   Determine if the following data is categorical or quantitative and explain why. 1. The types of cars in the different parking lots. 2. The average number of hours spent practicing ping-pong. 3. Areas in North Dakota that have wild

  Week 8 Assignment – Case Study: Statistical Inference Overview The research department of an appliance manufacturing firm has developed a solid-state switch for its blender that the research department claims will reduce appliance returns under the one-year full warranty

  Hypothesis Testing The Lazer Company has a contract to produce a part for Boeing Corporation that must have an average diameter of 6 inches and a standard deviation of 0.10 inch. The Lazer Company has developed a process that

Question one The Kenyan cabinet secretary for agriculture asserted that the locusts in Kenya have an average length of 41mm and hence they will die soon because 41 mm is classified as longer and old wings. With the probability that

  For any distribution, there are an equal number of values above and below the mean. Do you agree? Coefficient of variation CV = SD /mean *100 = 10/40*100 = 25% Range by use of Thumb Range Rule = 4*SD

This concept has been a difficult one for me to grasp but this is my take on the subject. I currently work on a post orthopedic surgery/trauma unit. On our unit, it is very important that all patients get out

 For this summers project we are going to use data from the General Social Survey (GSS). The GSS is a sociological survey created and regularly collected since 1972 by the National Opinion Research Center at the University of Chicago. It

  Describe the following terms in your own words: Mean Standard Deviation Z Scores Correlation Finally, if someone told you that the average of a data set was 40, and that standard deviation was 10, what else could you derive