# Time to Practice – Week One

933 words 4 pages
------------------------------------------------- University of Phoenix Material

Time to Practice – Week One

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 Student Textbook Resources link.

1. By hand (without 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 |

MEAN: 28.375
MEDIAN: 25.5
MODE: 23
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.

10. 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 - pie 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

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Part B

Complete the questions below. Be specific and provide examples when relevant.

Cite any sources consistent with APA guidelines.

Question | Answer | Salkind (2014) describes statistics as a set of tools. How do behavioral scientists use those tools? | | How would you use descriptive statistics to report the effectiveness of a baseball team? How would you use inferential

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