A Number of Butterfly Species Mate for Hours, and If

question 5

Essay

A number of butterfly species mate for hours, and if a mating couple is disturbed, oneof the butterflies is responsible for flying, carrying its partner with it. Not only aremating pairs more noticeable to predators, but the added weight may hamper theflight during escape. Random samples of Green-veined White (Pieris napi)butterflies were the subjects of a Swedish study to investigate the escape flights ofsingle butterflies and of mating pairs when exposed to a predator. Data on the initialtakeoff escape velocities are presented below. The investigators consideredperforming a hypothesis test to determine if there was evidence that the mean take offescape velocity was different for singles and pairs. Using a graphical procedure ofyour choice, determine if the t-test is appropriate.

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Definitions:

Mouse Keys

Mouse Keys is an accessibility feature that allows a user to control the mouse pointer using the numeric keypad on a keyboard.

Region Dialog Box

A user interface element that allows users to modify settings for a specific area or application feature.

Date And Time

Representations of specific moments measured in days, months, years, hours, minutes, and/or seconds.

Device Drivers

Software components that allow a computer's operating system to communicate with hardware devices.