Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 14: Q14.111 (page 585)

Identify the statistic used to estimate the population linear correlation coefficient

Short Answer

Expert verified

'r' is the statistic used to estimate age population linear correlation.

Step by step solution

01

Linear Correlation 

Linear correlation means that two variables change at a constant rate, with graphical representation denoted by a straight line.

02

Statistic Coefficient 

Population includes all the units of a data, sample includes some selected units.

Population statistical measures are 'parameters', sample estimates of parameters are 'statistic'

  • Population parameter : Correlation coefficient = p (rho)
  • Sample estimate statistic : Correlation coefficient = r

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.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

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

Fill in the blanks.

a. The line y=β0+β1xis called the ____

b. The common conditional standard deviation of the response variable is denoted _____

c. For x=6, the conditional distribution of the response variable is a____ distribution having mean___ and standard deviation____.

14.25 Plant Emissions. Plants emit gases that trigger the ripening of fruit, attract pollinators, and cue other physiological responses. N. Agelopolous et al. examined factors that affect the emission of volatile compounds by the potato plant Solanum tuberosum and published their findings in the paper "Factors Affecting Volatile Emissions of Intact Potato Plants, Solanum tuberosum: Variability of Quantities and Stability of Ratios" (Journal of Chemical Ecology, Vol. 26(2), pp. 497-511). The volatile compounds analyzed were hydrocarbons used by other plants and animals. Following are data on plant weight (x), in grams, and quantity of volatile compounds emitted (y), in hundreds of nanograms, for 11 potato plants.

In this Exercise 14.54, we repeat the information from Exercise 14.18.

a. Decide, at the 10%significance level, whether the data provide sufficient evidence to conclude that xis useful for predicting y:

b. Find a 90%confidence interval for the slope of the population regression line.

role="math" localid="1652363608630" x1344y8031 y^=9-2x

In Exercises 14.48-14.57, we repeat the information from Exercises 14.12-14.21.

a. Deride, at the lore significance level, whether the data provide sufficient evidence to conclude that xis useful for predicting y.

b. Find a localid="1653240248143" 90%confidence interval for the slope of the population regression line.

y=1+2x

Movie Grosses. Box Office Mojo collects and posts data on movie grosses. For a random sample of 50 movies, we obtained both the domestic (U.S.) and overseas grosses, in millions of dollars. The data are presented on the WeissStats site.
See all solutions

Recommended explanations on Math Textbooks

Applied Mathematics

Read Explanation

Geometry

Read Explanation

Calculus

Read Explanation

Mechanics Maths

Read Explanation

Pure Maths

Read Explanation

Theoretical and Mathematical Physics

Read Explanation
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.

Sign-up for free