Question
MATH221 Statistics for Decision Making
Week 2 LAB
Creating Graphs
1.
Create a pie chart for the variable Car Color: Select the column
with the Car variable, including the title of Car Color.
Click on Insert, and then Recommended Charts. It should show
a clustered column and click OK. Once the chart is shown,
right click on the chart (main area) and select Change Chart
Type. Select Pie and OK. Click on the pie slices, right
click Add Data Labels, and select Add Data Callouts. Add an
appropriate title. Copy and paste the chart here.
2.
Create a histogram for the variable Height. You need to create a
frequency distribution for the data by hand. Use 5 classes,
find the class width, and then create the classes. Once you
have the classes, count how many data points fall within each
class. It may be helpful to sort the data based on the Height
variable first. Once you have the classes and the frequency
counts, put those data into the table in the Freq Distribution
worksheet of the Week 1 Excel file. Copy and paste the graph
here.
3.
Create a scatter plot with the variables of height and money.
Copy the height variable from the data file and paste it into the x
column in the Scatter Plot worksheet of the week 1 Excel
file. Copy the money variable from the data file and paste it
into the y column. Copy and paste the scatter plot below.
Calculating Descriptive Statistics
4.
Calculate descriptive statistics for the variable Height by
Gender. Sort the data by gender by clicking on Data and then
Sort. Copy the heights of the males form the data file into
the Descriptive Statistics worksheet of the week 1 Excel
file. Type the standard deviations below. These are sample
data. Then from the data file, copy and paste the female data into
the Descriptive Statistics workbook and do the same
.
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