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The sample data table Hot Dogs.jmp came from an investigation of the taste and nutritional content of hot dogs. (a) Construct a histogram of the type of hot dogs (beef, meat, and poultry). Is there an equal number of each type considered? (b) The $/oz variable represents the cost per ounce of hot dog. Construct an outlier box plot of this variable and find any […]

The sample data table On-Time Arrivals.jmp (Aviation Consumer Home Page, 1999) contains the percentage of airlines’ planes that arrived on time in 29 airports (those that the Department of Transportation designates “reportable”). You are interested in seeing if there are differences between certain months. (a) Suppose you want to examine the differences between March and June. Is this a situation where a grouped test of […]

The sample data table Chamber.jmp represents electrical measurements on 24 electrical boards. (This is the same data used in “Paired Means: The Wilcoxon Signed-Rank Test” on page 211.) Each measurement was taken when soldering was complete and then again three weeks later after sitting in a temperature- and humidity-controlled chamber. The investigator wants to know if there is a difference between the measurements. (a)    Why […]

The manufacturers of a medication were concerned about adverse reactions in patients treated with their drug. Data on adverse reactions is stored in the sample data table AdverseR.jmp. The duration of the adverse reaction is stored in the ADR DURATION variable. (a) Patients given a placebo are noted with PBO listed in the treatment group variable, while those that received the standard drug regimen are […]

The sample data table Michelson.jmp contains data (as reported by Stigler, 1977) collected to determine the speed of light in air. Five separate collections of data were made in 1879 by Michelson, and the speed of light was recorded in km/sec. The values for velocity in this table have had 299,000 subtracted from them. (a) The true value (accepted today) for the speed of light […]

The sample data table Titanic Passengers.jmp contains information about the Passengers of the RMS Titanic. Use JMP to answer the following questions: (a) How many passengers were on the ship? How many survived? (b) How many passengers were male? Female? (c) How many passengers were in each class? (d) Test the hypothesis that there is no difference in the survival rate among the passenger classes. […]

Biologists are interested in determining factors that predict the amount of time an animal sleeps during the day. To investigate the possibilities, Allison and Ciccetti (1976) gathered information about 62 different mammals. Their data is presented in the sample data table Sleeping Animals.jmp. The variables describe body weight, brain weight, total time spent sleeping in two different states (Dreaming and NonDreaming), life span, and gestation […]

The sample data table Decathlon.jmp (Perkiömäki, 1995) contains decathlon scores from several winners in various competitions. Although there are 10 events, they fall into groups of running, jumping, and throwing. (a) Suppose you were going to predict scores on the 100m running event. Which of the other nine events do you think would be the best indicators of the 100m results? (b) Run a Stepwise […]

The sample data table Tiretread.jmp contains the results of a three-factor response surface experiment. The factors are Silica, Silane, and Sulfur. The experiment was conducted to optimize four responses: Abrasion, Modulus, Elongation, and Hardness. The goals for the four responses have been added as column properties. (Note: Click on the asterisk next to each response in the Columns panel, and select Response Limits to view […]

The sample data table Mushroom.jmp contains 22 characteristics of 8,124 edible and poisonous mushroom. To see probabilities, select Display Options > Show Split Prob from the top red triangle menu. (a) Use the Partition platform to build a seven split model to predict whether a mushroom is edible based on the 22 characteristics. (b) Which characteristics are most important? Note: Use Column Contributions. (c) What […]