3842 Ch10 HW
numerical data
bar chart or line chart
ratio data
bar chart or line chart
trend of net income over the past 5 years
bar chart or line chart
data visualization associated with what type of analysis: histograms
descriptive
data visualization associated with what type of analysis: line and bar charts
descriptive
data visualization associated with what type of analysis: pie charts
descriptive
graphs and histograms associated with what analysis
descriptive
"plots" in data visualization associated with what type of analysis (box plots scatter plots)
diagnostic
data visualization associated with what type of analysis: box plots
diagnostic
data visualization associated with what type of analysis: scatter plot
diagnostic or predictive
if the lines on the box plot extend further downward, the skew is (positive/negative)
negative
categorical data (ex. number of companies using different depreciation methods)
pie chart
company sales versus sales returns
pie chart
emphasize proportions (sales of each of the company's segments)
pie chart
if the outlier is above the box plot, the outlier is (positive/negative)
positive
data visualization associated with what type of analysis: time series data
predictive
data visualization associated with what type of analysis: breakeven graph
prescriptive
data visualization associated with what type of analysis: tables displaying sensitivity analysis
prescriptive
number of observations in 1 category/ all categories
proportion
numerical data with an equal and definitive ration between each data, AND an absolute zero
ratio data
value of 2 variables, each plotted on its own axis to exhibit possible correlation
scatterplot
the box plot with the wider variability will look
taller
observations on values taken on by a variable at different points in time
time series analysis
general direction something is going
trend
when to use bar or line chart
- trends - ratio data - numerical data
If your IQ is 130, the average population IQ is 100, and the standard deviation is 15, what is your z-score?
2 (2*15) = 30 (30+100) = 130
If the average IQ is 100 and the standard deviation is 15, what is the 95% confidence interval?
95% confidence interval = 2 standard deviations 2*15 = 30. 100 - 30 = 70. 100 + 30 = 130 confidence interval is between 70 and 130
