Following Problems Within Theword U03A1 Georgia S

Following Problems Within Theword U03A1 Georgia S

Following Problems Within Theword U03A1 Georgia S

u03a1 Central Tendency and Variability

Complete the following problems within theWord document (do not submit other files). Show your work for problem sets that require calculations. Ensure your answer to each problem is clearly visible. (You may want to highlight your answer or use a different font color to set it apart.)

Submit the document to your instructor by Sunday, 11:59 p.m. central time.

Problem Set 3.1: Median

Criterion: Calculate the median for a setof scores.

Instruction: Calculate the median of the provided data.

Data: Fifty employees were surveyed on their overall job satisfaction on a scale of 1 (not at all satisfied) to 10 (extremely satisfied). The results are tabulated in the table below. What is the median of this data set?

Job Satisfaction

Job Satisfaction Score

Frequency

10

2

9

8

8

13

7

10

6

7

5

4

4

2

3

2

2

1

1

1

(Assignment continues on next page.)


Problem Set 3.2: Mode, Median, Mean, and Skew

Criterion: Calculate the mode, median, and mean for a set of scores.

Data set: 4, 2, 2, 2, 1, 1, 4, 5, 1, 3, 3, 3, 1, 2, 2, 2, 1, 4, 4, 3, 3, 2, 1, 2, 1.

Instructions: For the given data set, answer the following:

a. What is the mode?

b. What is the median?

c. What is the mean?

d. Are these scores normally distributed, positively skewed, or negatively skewed?

e. Do you expect the mean to be higher or lower than the median?

Problem Set 3.3: Range, Variance, and Standard Deviation

Criterion: Determine the range, variance, and standard deviation of a sample from raw scores.

Data set: A sample of students scored the following:

3, 45, 4, 41, 14, 75, 40, 11, 9, 5, 21, 61, 48, 61, 29, 51, 44, 67, 39, 23, 45, 57, 60, 63,62.

Instructions: For the given data set, answer the following:

a. What is the range of scores?

b. What is the variance in scores?

c. What is the standard deviation in scores?

Be sure to show your work.


Problem Set 3.4: Range, Variance, and Standard Deviation in SPSS

Criterion: Calculate measures of variability in SPSS from a group of raw scores.

Instructions: Complete the following steps:

a. Enter the data from Problem Set 3.2into SPSS using the variable name Data.

b. In the Toolbar, click Analyze, select Descriptive Statistics, and then select Descriptives.

c. Click Dataand then click Arrow to send it over to the right side of the table. Select Options, check the boxes Variance and Range, and then click Continue.

d. Click OK and copy and paste the descriptive statistics table below.

e. Highlight the range, mean, and standard deviation.

f. Answer: Does your mean equal the mean calculated in Problem Set 3.2?

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