1 point) We are interested in finding the average age of cats in the US. We surveyed 400 cats from 30 states. We draw conclusion that average age of cats in the US is 6 years. In this example, What is population? What is sample? What is parameter? What is statistic? 2. (1 point) In the example above, is the sample a good representative of the population? Explain Why. 3. (1 point) Write another example and indicate population, sample, parameter and estimate/statistic. 4. (1 point) What are primary benefits of randomization in an experiment? 5. (1 point) Table below shows 5 samples from the same population. Calculate means and standard deviation of each sample. (Using Excel) If the true value of population mean is 37.3, calculate sampling errors. Why are sample means different? What is the difference between sampling error and bias? Sample -1 Sample -2 Sample -3 Sample -4 Sample -5 1 35 31 39 40 43 2 41 35 42 36 38 3 37 42 36 37 41 4 38 31 34 38 36 5 35 41 37 40 37 6 34 40 39 39 31 7 37 37 34