We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. 
What are the standard normal z-statistic class limits for the "800 up to 1000" class?
Definitions:
Poly(Ethylene Terephthalate)
A thermoplastic polymer used in fibers for clothing, containers for liquids and foods, and in thermoforming for manufacturing.
Orlon
A synthetic fiber made from a polymer acrylonitrile, used primarily in textiles.
Poly(Acrylonitrile)
A polymer made from acrylonitrile monomers, commonly used in the production of synthetic fibers and plastics.
Hydrolyzed
A chemical process where a compound is broken down into smaller molecules by the addition of water.
Q1: An infant of Species X sees a
Q6: We are interested in knowing if the
Q10: Jack was talking to his friend Jane
Q25: You want to raise your child so
Q30: Who did NOT contribute to any incarnation
Q53: The best example of a null hypothesis
Q65: If r = 0.65, what does the
Q110: What happens as the scatter of data
Q125: If the null hypothesis is false and
Q129: If the coefficient of correlation is -0.81,