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problem 2: statistics Data are provided to you on pizza delivery times (in minutes) for 2 different classifications of stores :local and chain stores....
problem 2: statistics
Data are provided to you on pizza delivery times (in minutes) for 2 different classifications of stores :local and chain stores. The goal here is to determine whether there is a significant difference in the mean delivery time between the store classifications: using software
A- generate summary statistics (central tendency and variability measures) for the two samples and briefly summarize what they say.
B- conduct a test of significance for the between the mean delivery of local and chain stores and (show the results) interpret the results.
C- construct a 95%confidence interval of the difference between the two population mean delivery time and interpret it.
D- finally, are there any other factors, besides the way the store is classified, that could possibly influence delivery times (try and list at least 2)? Include a brief explanation of each.
