Reference no: EM132930084

Assignment: Statistics Worksheet

Introduction

As you saw in your learning unit, statistical analyses are important for research. In this assignment, you will apply your knowledge of statistics by completing questions in a worksheet. Some questions will be more conceptual, while others will be numerical. Please use your textbook, learning unit, or outside resources to complete the worksheet.

1) The following numbers are in a data set: 19, 9, 17, 17, 17, 10, 9, 20, 16, 18, 6, 12, 15. You will calculate the following:

Mean:

Median:

Mode:

Range:

2) Use the same data set above to calculate the average deviation.

3) What will then be the variance and standard deviation for this data set? Explain what standard deviation is and why the average deviation is sometimes not a valuable number to use in statistics.

4) The temperature is recorded of 60 patients who have early symptoms of influenza. The average temperature is 103.1 degrees Fahrenheit with a standard deviation of 1.2 degrees. What is the z-score for a temperature of 100.1 degrees? Using Appendix A, in your text, or an online version of the z-score, calculate the proportion of people who could be expected to have a temperature above 100.1 degrees? (Hint: Look at the area above the z-score).

5) Have you ever thought about if buildings have correlation between the number of stories and their height? Naturally, it can be assumed that more stories will equal more height. In the 1994 World Almanac (bldgstories.txt), researchers used 60 buildings and found there was a correlation of 0.951.

What does n equal in this scenario? Is the correlation considered positive or negative in this case? What is the percentage of height that can be explained by the number of stories in the building?

Attachment:- Statistics Worksheet Assignment.rar