Consider a sample with a mean of 500 and a standard deviation of 100. What are the z-scores for the following data values: 530, 670, 500, 470, and 310? z-score for 530? z-score for 670? z-score for 500? z-score for 470? z-score for 310?

The weights of men are normally with a mean of 172 pounds and a standard deviation of 29 pounds. What percentage of men weigh between 150 and 200 pounds?

Compute the standard error of the mean from the following scores; 45, 34, 65, 14, 15, 25 Round your answer to the nearest hundredths.

Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 42 41 39 31 23 21 18 17 16.8 16.1 O The range of the sample data is $ million. (Type an integer or a decimal.) The variance of the sample data is (Round to two decimal places as needed.) The standard deviation of the sample data is $ (Round to two decimal places as needed.) million Is the standard deviation of the sample a good estimate of the variation of salaries of TV personalities in general? O A. No, because there is an outlier in the sample data. B. Yes, because the sample is random. C. No, because the sample is not representative of the whole population. O D. Yes, because the standard deviation is an unbiased estimator. Next