Problem 3: Name the scenario Ted Copper of the local police unit is concerned ab

Question

Problem 3: Name the scenario Ted Copper of the local police unit is concerned about the safety of drivers along Interstate 93. He would like your help in deciding which statistical test might be used for each of his questions. Read each of the research questions in parts (a) through (e) below and then circle the number for the appropriate statistical test based on the provided number listing. 1. One-sample test for the population mean 2. Paired test for the population mean difference 3. Independent samples test for the difference between two population means a. The police are interested in seeing how fast drivers typically go. The speed limit is 75 mph, but the officer suspects that they go faster. Circle the number for the appropriate test: 1 2 3 b. A large sample of male and female drivers is taken and each driver is asked the maximum mph over the speed limit they have ever gone. The police suspect that males will have driven faster than females, but want to test their theory. Circle the number for the appropriate test: 1 2 3 e. A sample of drivers is asked how fast they drove on Friday (max speed) and how fast they drove on Thursday. The police want to investigate if drivers head to their destinations faster on the weekend. Circle the number for the appropriate test: 1 2 3

Explanation / Answer

a.
Here a sample from population will serve the purpose

This is one sample test for population mean.

b.
Here two samples from two different populations are put under study.

This is independent samples test for the difference between two population means.

c.
Here there sample set of sample is studied for two different days for the difference in speed.

This is paired test for the population difference.

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