please see attached
Hi please see attached
CRJU 330 Be sure to show work as indicated, if no work is shown when asked for points will be deducted. Also be sure to write neatly so that I can read it. If you want to use excel, that is acceptable, however please turn those files in with your exam. Name: Multiple Choice (2pts each) 1. ________Which of the following is not a measure of central tendency? A) Median B) Mode C) Standard deviation D) Mean 2. ________What is a collection of information also called? a. data set b. sample statistic c. descriptive statistic d. population subset 3. ________Your current exam mean is 97.2. If you receive an 80 on the next exam, this will have the effect of: a. Increasing your mean b. Decreasing your mean c. Having no effect on your mean d. Cannot be determined 4.________Which of the following is not a measure of variability? a. Median b. Standard deviation c. Variance d. Range 5._______Which measure of central tendency is considered the most precise? a. mean b. median c. mode d. average 6._______Which of the following symbols represents sample size? a. X b. y c. n d. M 7._______If you know M = 5, and the sum of scores is 20, what is n? a. 4 b. 0.25 c. 100 d. need more information 8._______What is the mean value for the following scores: 10, 35, 40, 60, 55, 25, 50? a. 45 b. 44.17 c. 40 d. 39.29 9._______What is the most basic method of illustrating data? a. frequency distribution b. pie chart c. line graph d. polygon Fill in the Blank/Short Answer 10._______What is a graphical representation of a frequency distribution? a. histogram b. frequency distribution c. bar chart d. cumulative frequency distribution 11._______What is the general principle of labeling in graph design? a. Label everything. b. Do not label everything. c. Avoid labeling everything. d. Do not avoid labeling everything. 12. When there are an even number of scores, how is the Median calculated? 13. 20 Students took an exam. Scores ranged from 75% to 95%. The mean score on the exam was an 85% with a standard deviation of 40%. What, if anything, is wrong with these findings? 14. Statistics describes a set of ______ that are used for describing, organizing, and interpreting information. a. statements b. rules and exceptions c. tools and techniques d. numbers and letters 15. ______ statistics are often (but not always) the next step after you have some basic understanding of data. a. Descriptive b. Inferential c. Experimental d. Observational Name each of the following: 16. _________ 17._________ 18. _________ 19. _________ 20. __________ Answer the following questions neatly and be sure to show all the steps in your work. (60pts total this section) These data were collected using a survey to assess college student use of alcohol on the Bridgewater campus. Students were asked their gender and how often in the last week they drank alcohol. Gender # of days Male Male Female Male Female Female Female Female Male Male Female Female Female Male Male Male Female Female Female Male 19.Create a frequency distribution chart by hand showing frequency, cumulative frequency, percent, and cumulative percent of gender and number of days having a drink (20pts) n= Mean days having a drink= Median days having a drink= Mode of days having a drink= 20.Calculate the mean and standard deviation, by hand, of hours spent studying (20pts): Hours studying 21.Open the officer Satisfaction Data and do the following (20pts): Find the mean and standard deviation of SATPY (officer satisfaction with pay). How satisfied are officers with their pay? Using SPSS create a graph and past below. What type of graph did you pick and why? Run a frequency distribution of officer age and a bar chart of officer age and paste below. What is the most common age of the officers in the sample?