Space Shuttle
The number of space shuttle O-ring incidents for 4 space shuttle launches when the air temperatures was below 65 degrees F and for 20 space shuttle launches when the air temperature was above 65 degrees F.
case0401
A data frame with 24 observations on the following 2 variables.
Incidents
the number of O-ring incidents
Launch
factor variable with two levels—"Cool"
and
"Warm"
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Feynman, R.P. (1988). What do You Care What Other People Think? W. W. Norton.
str(case0401) stem(subset(case0401, Launch=="Cool", Incidents, drop=TRUE)) stem(subset(case0401, Launch=="Warm", Incidents, drop=TRUE))
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.