You collect data on coronavirus cases from a random sample of cities of similar sizes in cold climates and in warm climates and make the following table: (This data can be copied into Excel.) You use this data to answer the research question: is the population average number of coronavirus cases different in warm cities and cold cities?

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Q: The deflection temperature under load for two different types of plastic pipe is being investigated.…

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Q: The deflection temperature under load for two different types of plastic pipe is being investigated.…

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