# Statistics Exercise I: Descriptive statistics These weekly exercises provide the opportunity for you to understand and apply statistical methods and analysis.  #1 Given the following values of the mea

Statistics Exercise I: Descriptive statistics

These weekly exercises provide the opportunity for you to understand and apply statistical methods and analysis.

#1 Given the following values of the mean and median, state the likely shape of the distribution:(a) mean = 4, median = 4 _______________(b) mean = 12, median = 2 _______________(c) mean = 8, median = 18 _______________(d) mean = 6, median = 14 _______________(e) mean = 10, median = 3 _______________(f) mean = 8, median = 8 _______________

#2. IQ scores have a mean of 100 and a standard deviation of 15. What percentile corresponds to an IQ score of 115? Explain the steps you took to find the percentile.

#3. Which measure of central tendency would you use for the following variables (mean, median or mode). Explain your choice.Gender: _______________________________________________________Class rank at a college: __________________________________________________Age of high school students: ________________________________________A skewed income distribution (90% with incomes under \$150K; a few with incomes of several million): ____________________________________________________Use SPSS and the data file found in syllabus resources (DATA540.SAV) to answer the following questions. Round your answers to the nearest dollar, percentage point, or whole number.

#4. What is the mean annual income (INC1) of the participants?

\$43,282

\$72,133

\$47,113

\$34,282

#5. What percent of the participants are married (RELAT)?

28%

33%

51%

59%

#6. What is the modal level of relationship happiness (HAPPY)?

Mixed

Happy

Very Happy

Cannot be determined

#7. What is the median income of the participants partners (INC2)?

\$24,212

\$28,945

\$32,000

\$48,975

#8. What percent of the participants are age 51 or older?

4%

5%

7%

10%

## Don't hesitate - Save time and Excel

Are you overwhelmed by an intense schedule and facing difficulties completing this assignment? We at GrandHomework know how to assist students in the most effective and cheap way possible. To be sure of this, place an order and enjoy the best grades that you deserve!

Post Homework
Top