PSY380-RS-Project 1 - Here is the notes for the first project at the Psy-380 introduction to statistics PDF

Preview

Summary

Here is the notes for the first project at the Psy-380 introduction to statistics course....

Description

PSY-380-Introduction to Probability and Statistics Project 1 A study was done to explore the number of chocolate bars consumed by 16-year-old girls in a month's time. The results are shown below. Number of Chocolate Bars Consumed 56 46 12 62 39 24 59 51 39 52 28 41 10 64 27 0 34 5 55 32 42 24 14 63 1 63 52 58 52 26

© Grand Canyon University 2015

1

Use the data from the chocolate bar study to answer the following questions. Use SPSS for all calculations. Copy and paste the SPSS output into the word document, highlighting the correct answer. Additionally, type the correct answer into your word document next to the corresponding question. 1. Identify the level of measurement used in this study. The level of measurement used in this study is Ratio. 2. Using SPSS, run descriptive statistics on the data: a. Find the mean, median, and mode of the number of chocolate bars consumed by 16-year-old girls in a month. M=37.70 Median=40 Mode=52 b. Find the variance and standard deviation of the number of chocolate bars consumed by 16-year-old girls in a month. s2 = 398.217 s = 19.955 Statistics chocolate_bars N

Valid Missing

30 0

Mean

37.70

Median

40.00

Mode

52

Std. Deviation Variance

19.955 398.217

3. Create a frequency distribution table with six intervals/classes.

chocolate_bars (Binned) Cumulative Frequency Valid

Percent

Valid Percent

Percent

0 - 10

4

13.3

13.3

13.3

11 - 21

2

6.7

6.7

20.0

22 - 32

6

20.0

20.0

40.0

33 - 43

5

16.7

16.7

56.7

44 - 54

5

16.7

16.7

73.3

© Grand Canyon University 2015

2

55 - 65 Total

8

26.7

26.7

30

100.0

100.0

100.0

4. Create a histogram based on the Frequency table in problem 3.

© Grand Canyon University 2015

3...