A research team has been contracted to learn some informatio…

A research team has been contracted to learn some information about what type of new coaster passholders would like to see constructed at the park.  Determine the type of sample used: The research team decides to use the numbers on the passholder cards and choose every number that ends in a five to determine what passholders to gather information from.  

In a large state, a simple random sample of 100 individuals…

In a large state, a simple random sample of 100 individuals at one amusement park named Points of Cedar found that 10 people said they did not like riding roller coasters.  At another amusement park in the same state named Island Kings, a simple random sample of 100 individuals found that 20 people said they did not like riding roller coasters.   Is there evidence that the proportion of individuals who do not like coasters at Points of Cedar is less than the proportion of individuals who do not like coasters at Island Kings.   Let be the proportion surveyed who do not like coasters at Points of Cedar and be the proportion surveyed who do not like coasters at Island Kings.   The point estimate would be: A 95% confidence interval for the difference of the population proportions would be: One interpretation of this confidence interval would be: Is there evidence that the proportion of individuals who do not like coasters at Points of Cedar is less than the proportion of individuals who do not like coasters at Island Kings.  The p-value for this would be: What action should be taken for a level of significance of 0.05?