Two Coffee-Vending Machines Are Studied to Determine Whether They Distribute

question 88

Multiple Choice

Two coffee-vending machines are studied to determine whether they distribute the same amounts. Samples are taken and the number of ounces is recorded for each machine. On average, can we conclude that the machines distribute the same amount? Test at α = .05.

• A) Reject the null hypothesis.
• B) Do not reject the null hypothesis.

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Definitions:

Rhizoids

Thin, root-like structures found in non-vascular plants, fungi, and some protists, serving primarily for attachment and in some cases, absorption.

Sporophyte

The diploid, spore-producing phase of plants and algae that undergo alternation of generations, in contrast to the haploid gametophyte phase.

Diatoms

Single-celled, photosynthetic protists with a two-part silica shell.

Amoebozoans

A group of amoeboid protozoa, including amoebas, characterized by their ability to change shape due to the movement of their pseudopodia.