Some questions in Part A require that you access data from
Statistics for People Who (Think
They) Hate Statistics.
This data is available through the Textbook Resources link.
If you paste in SPSS output, highlight the required answers to the question.
- By hand or using SPSS, compute the
mean, median, and mode
for the following set of 40 reading scores:
SUMMARY
31 |
32 |
43 |
42 |
24 |
34 |
25 |
44 |
23 |
43 |
24 |
36 |
25 |
41 |
23 |
28 |
14 |
21 |
24 |
17 |
25 |
23 |
44 |
21 |
13 |
26 |
23 |
32 |
12 |
26 |
14 |
42 |
14 |
31 |
52 |
12 |
23 |
42 |
32 |
34 |
- Compute the means for the following set of scores using IBM®
SPSS®
software. The data sets can be found through the Sage Materials in the Student Textbook Resource Access link, listed under Academic Resources. The following set of scores is saved as Ch. 2 Data Set 3. Copy and paste the output from IBM®
SPSS®
into this worksheet. You will have a mean for Bed number and also for infection rate.
Hospital size (number of beds) |
Infection rate (per 1,000 admissions) |
234 |
1.7 |
214 |
2.4 |
165 |
3.1 |
436 |
5.6 |
432 |
4.9 |
342 |
5.3 |
276 |
5.6 |
187 |
1.2 |
Title ABC/123 Version X 1 Time to Practice: Week 1 PSYCH/625 Version 4 3 University of Phoenix Material Time to Practice: Week 1 Complete both Part A and Part B below. Part A Some questions in Part A require that you access data from Statistics for People Who (Think They) Hate Statistics. This data is available through the Textbook Resources link. If you paste in SPSS output, highlight the required answers to the question. 1. By hand or using SPSS, compute the mean, median, and mode for the following set of 40 reading scores: SUMMARY 31 32 43 42 24 34 25 44 23 43 24 36 25 41 23 28 14 21 24 17 25 23 44 21 13 26 23 32 12 26 14 42 14 31 52 12 23 42 32 34 2. Compute the means for the following set of scores using IBM® SPSS® software. The data sets can be found through the Sage Materials in the Student Textbook Resource Access link, listed under Academic Resources. The following set of scores is saved as Ch. 2 Data Set 3. Copy and paste the output from IBM® SPSS® into this worksheet. You will have a mean for Bed number and also for infection rate. Hospital size (number of beds) Infection rate (per 1,000 admissions) 234 1.7 214 2.4 165 3.1 436 5.6 432 4.9 342 5.3 276 5.6 187 1.2 512 3.3 553 4.1 3. You are the manager of a fast food store. Part of your job is to report which special is selling best to the boss at the end of each day. Use your knowledge of descriptive statistics and write one paragraph to let the boss know what happened today. Use the following data. Do not use IBM® SPSS® software to compute the statistics needed; rather, do it by hand. You may check your work in SPSS after you compute it. Special number Sold Cost Huge Burger 20 $2.95 Baby Burger 18 $1.49 Chicken Littles 25 $3.50 Porker Burger 19 $2.95 Yummy Burger 17 $1.99 Coney Dog 20 $1.99 Total specials sold 119 4. Suppose you are working with a data set that has some different (much larger or much smaller than the rest of the data) scores. What measure of central tendency (mean, median or mode) would you use and why? 5. Use IBM® SPSS® software to compute all the descriptive statistics for the following set of three test scores over the course of a semester. Which test had the highest average score? Which test had the smallest amount of variability? Test 1 Test 2 Test 3 50 50 49 48 49 47 51 51 51 46 46 55 49 48 55 48 53 45 49 49 47 49 52 45 50 48 46 50 55 53 6. This practice problem uses the data contained in the file named Ch. 3 Data Set 3. There are two variables in this data set. The data sets can be found through the Sage Materials in the Student Textbook Resource Access link, listed under Academic Resources. Using IBM® SPSS® software, compute all of the measures of variability you can for height and weight. Copy and paste the output from IBM® SPSS® into this worksheet. Variable Definition Height Height in inches Weight Weight in pounds 7. Identify whether these distributions are negatively skewed, positively skewed, or not skewed at all and why. a. This talented group of athletes scored very high on the vertical jump task. b. On this incredibly crummy test, everyone received the same score. c. On the most difficult spelling test of the year, the third graders wept as the scores were delivered. 8. For each of the following, indicate whether you would use a pie, line, or bar chart, and why. a. The proportion of freshmen, sophomores, juniors, and seniors in a particular university b. Change in GPA over four semesters c. Number of applicants for four different jobs d. Reaction time to different stimuli e. Number of scores in each of 10 categories From Salkind (2014). Copyright © 2014 SAGE. All Rights Reserved. Adapted with permission. Part B Answer the questions below. Be specific and provide examples when relevant. Cite any sources consistent with APA guidelines. Question Answer What are statistics and how are they used in the behavioral sciences? Your answer should be 100 to 175 words. Differentiate between descriptive and inferential statistics. What information do they provide? What are their similarities and differences? Your answer should be 175 to 350 words. What is a population? What is a sample? How are they similar and how are they different? When would you use one or the other? Your answer should be 175 to 350 words. Copyright © XXXX by University of Phoenix. All rights reserved. Copyright © 2017, 2014 by University of Phoenix. All rights reserved.