/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 89 A farmer is experimenting to det... [FREE SOLUTION] | 91影视

91影视

A farmer is experimenting to determine which variety of apple trees, Fuji or Gala, will produce more fruit in his orchard. The orchard is divided into 20equally sized square plots. He has 10trees of each variety and randomly assigns each tree to a separate plot in the orchard. What is the experimental unit (s) in this study? a. The trees; b. The farmer; c. The plots d. The orchard e. The apples

Short Answer

Expert verified

The correct option is (c) The plots

Step by step solution

01

Given information

We have been given that the orchard is divided into 20equally sized square plots.

He has 10trees of each variety and randomly assigns each tree to a separate plot in the orchard.

02

Step 2:Explanation 

The plots are the test units, as they are the objects subjected to the estimations. The assortment of apple trees is the informative variable since they advance alteration within the exploratory unit through two diverse medicines (Fuji or Occasion assortment). The agriculturist is the one conducting the trial, and the number of apples is the result to be analyzed. The plantation as a whole does not meddle with the test since each plot is being examined.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Student archaeologists An archaeological dig turns up large numbers of pottery shards,

broken stone tools, and other artifacts. Students working on the project classify each

artifact and assign a number to it. The counts in different categories are important for

understanding the site, so the project director chooses 2%of the artifacts at random and

checks the students鈥 work. Identify the population and the sample.

How is your room? A hotel has 30floors with 40rooms per floor. The rooms on one side of the hotel face the water, while rooms on the other side face a golf course. There is an extra charge for the rooms with a water view. The hotel manager wants to select 120rooms and survey the registered guest in each of the selected rooms about his or her overall satisfaction with the property.

a. Describe how to obtain a sample of 120rooms using stratified random sampling. Explain your choice of strata and why this method might be preferred to simple random sampling.

b. Describe how to obtain a sample of 120rooms using cluster sampling. Explain your choice of clusters and why this method might be preferred to simple random sampling.

Anonymous? Confidential? Texas A & M, like many universities, offers screening for HIV, the virus that causes AIDS. Students may choose either anonymous or confidential screening. An announcement says, 鈥淧ersons who sign up for screening will be assigned a number so that they do not have to give their name.鈥 They can learn the results of the test by telephone, still without giving their name. Does this describe anonymous or confidential screening? Why?

Apartment living You are planning a report on apartment living in a college town. You decide to select three apartment complexes at random for in-depth interviews with residents.

a. Explain how you would use a line of Table D to choose an SRS of 3complexes from the following list.

b. Use line 117to select the sample. Show how you use each of the digits.

Parking on campus The director of student life at a university wants to estimate the proportion of undergraduate students who regularly park a car on campus. Describe how to select a stratified random sample of approximately 100students. Explain your choice of strata and why stratified random sampling might be preferred in this context.

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.