PSYC4700 2023 January Week 2 Assignment Latest

PSYC4700 Statistics for the Behavioral Sciences

Week 2 Assignment  

Frequency Distributions, Percentiles, and Graphical Representations

Complete the following problems within the Word 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 2.1: Grouped or Ungrouped

Criterion: Explain the identification of types of data.

Instructions: Fill in the table below. For each example, state whether it is grouped or ungrouped and why.

Example               Grouped or Ungrouped Why

The time (in seconds) it takes 100 children to complete a cognitive skills game.

                                The number of single mothers with 1, 2, 3, or 4 children.

                                The number of teenagers who have experimented with smoking (yes, no).

                                The age (in years) of freshman students in a local college.

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Problem Set 2.2: Frequencies and Percent

Criterion: Identify frequencies and percent.

Instructions: State whether a cumulative frequency, relative frequency, relative percent, cumulative relative frequency, or cumulative percent is most appropriate for describing the following situations. For cumulative distributions, indicate whether these should be summarized from the top down or from the bottom up.

Data:

1.            The frequency of businesses with at least 20 employees: __________

2.            The frequency of college students with less than a 3.0 GPA: __________

3.            The percentage of women completing 1, 2, 3, or 4 tasks simultaneously: __________

4.            The proportion of pregnancies performed in public or private hospitals: __________

5.            The percentage of alcoholics with more than 2 years of substance abuse: __________

Problem Set 2.3: Reading a Chart

Criterion: Locate data on a chart.

Instructions: Read the following and answer the questions.

Participant Characteristics

Profession           Count

                Type      Token

College Professor

Clinical Psychologist

Unknown            24,541

23,617

479        878,261

751,188

927       

Total                      1,630,376          

1.            Do college professors or clinical psychologists in this sample speak more words overall (Token Count)? _______________

2.            Do college professors or clinical psychologists in this sample speak more different words (Type Count)? _______________

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Problem Set 2.4: Understanding Percentages

Criterion: Identify distribution type and number of people.

Instructions: Read the following and answer the questions.

Perceptions of same-sex marriage. In June 2016, a CBS News poll asked a sample of adults worldwide whether it should be legal or not legal for same-sex couples to marry (reported at http://www.pollingreport.com). The opinions of adults worldwide were as follows: 58%, legal; 33%, not legal; and 9%, unsure/no answer.

1.            What type of distribution is this? __________________________

2.            Knowing that 1,280 adults were polled nationwide, how many Americans polled felt that same-sex couples should be allowed to legally marry? __________________________

Problem Set 2.5: Create an Ascending Frequency Table in JASP

Criterion: Create an ascending frequency table in JASP.

Data: Use Clicks data set. This data set is a record of the number of clicks per hour in forty different tweets.

Instructions: Complete the steps below.

1.            Download Clicks data set. Double-click the icon to open the data set in JASP.

2.            In the Toolbar, click Descriptives.

3.            Select Clicks and then click Arrow to send it over to the Variables box.

4.            Click Tables. In the menu that opens, check Frequency Tables.

5.            Copy and paste the ascending values frequency table into the Word document.

Note: You will continue to use this data set in the next two problems.

Problem Set 2.6: Construct a Bar Graph in JASP

Criterion: Construct a bar graph in JASP.

Data: Use Clicks data set. This data set is a record of the number of clicks per hour in forty different tweets.

Instructions: Complete the following steps to create a bar chart to examine the data:

1.            Download Clicks data set. Double-click the icon to open the data set in JASP.

2.            In the Toolbar, click Descriptives.

3.            Select Clicks and then click Arrow to send it over to the Variables box.

4.            Click Basic Plots, then check Distribution Plots.

5.            Copy and Paste the bar graph below.

6.            Optional to answer: What is the shape of the distribution?

Note: You will continue to use this data set for the next problem.

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Problem Set 2.7: Construct a Pie Chart in JASP

Criterion: Construct a pie chart in JASP.

Data: Use Clicks data set. This data set is a record of the number of clicks per hour in forty different tweets.

Instructions: Complete the following steps to create a pie chart.

1.            Download Clicks data set. Double-click the icon to open the data set in JASP.

2.            In the Toolbar, click Descriptives.

3.            Select Clicks and then click Arrow to send it over to the Variables box.

4.            Click Basic Plots, then check Pie charts.

5.            Copy and paste the pie graph below.