×
Log in to StudySoup
Get Full Access to Probability And Statistical Inference - 9 Edition - Chapter 8.2 - Problem 2e
Join StudySoup for FREE
Get Full Access to Probability And Statistical Inference - 9 Edition - Chapter 8.2 - Problem 2e

Already have an account? Login here
×
Reset your password

(In some of the exercises that follow, we must | Ch 8.2 - 2E

Probability and Statistical Inference | 9th Edition | ISBN: 9780321923271 | Authors: Robert V. Hogg, Elliot Tanis, Dale Zimmerman ISBN: 9780321923271 41

Solution for problem 2E Chapter 8.2

Probability and Statistical Inference | 9th Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Probability and Statistical Inference | 9th Edition | ISBN: 9780321923271 | Authors: Robert V. Hogg, Elliot Tanis, Dale Zimmerman

Probability and Statistical Inference | 9th Edition

4 5 1 261 Reviews
20
2
Problem 2E

PROBLEM 2E

(In some of the exercises that follow, we must make assumptions such as the existence of normal distributions with equal variances.)

Let X and Y denote the weights in grams of male and female common gallinules, respectively. Assume that X is N(μX, σ2 X) and Y is N(μY, σ2Y ).

(a) Given n = 16 observations of X and m = 13 observations of Y, define a test statistic and a critical region for testing the null hypothesis H0: μX = μY against the one-sided alternative hypothesisH1: μX > μY. Let α = 0.01. (Assume that the variances are equal.)

(b) Given that  and s2y= 692.21, calculate the value of the test statistic and state your conclusion.

(c) Although we assumed that σ2 X = σ2Y , let us say we suspect that that equality is not valid. Thus, use the test proposed by Welch.

Step-by-Step Solution:
Step 1 of 3

Erika Halloway Project 3 Secretary Notes Kate Ericson – Pyramid and Greek Buildings –Afeel of an archelogical dig –Contrast in size and apperance –Pyramid: apperance of perfection vs. Greek building: crumbling, more worn out –Interior space is open –Hole: Portal of sort to an hidden culture –Indiana Jones feel Emily Gaustae –Doll house-like look and effect –Structure is complex and not quite symmetrical –Years on the tree; 2–4 year gap –Tree represents growth

Step 2 of 3

Chapter 8.2, Problem 2E is Solved
Step 3 of 3

Textbook: Probability and Statistical Inference
Edition: 9
Author: Robert V. Hogg, Elliot Tanis, Dale Zimmerman
ISBN: 9780321923271

Probability and Statistical Inference was written by and is associated to the ISBN: 9780321923271. The answer to “(In some of the exercises that follow, we must make assumptions such as the existence of normal distributions with equal variances.)Let X and Y denote the weights in grams of male and female common gallinules, respectively. Assume that X is N(?X, ?2 X) and Y is N(?Y, ?2Y ).(a) Given n = 16 observations of X and m = 13 observations of Y, define a test statistic and a critical region for testing the null hypothesis H0: ?X = ?Y against the one-sided alternative hypothesisH1: ?X > ?Y. Let ? = 0.01. (Assume that the variances are equal.)(b) Given that and s2y= 692.21, calculate the value of the test statistic and state your conclusion.(c) Although we assumed that ?2 X = ?2Y , let us say we suspect that that equality is not valid. Thus, use the test proposed by Welch.” is broken down into a number of easy to follow steps, and 141 words. This full solution covers the following key subjects: test, let, Observations, Statistic, assume. This expansive textbook survival guide covers 59 chapters, and 1476 solutions. This textbook survival guide was created for the textbook: Probability and Statistical Inference , edition: 9. The full step-by-step solution to problem: 2E from chapter: 8.2 was answered by , our top Statistics solution expert on 07/05/17, 04:50AM. Since the solution to 2E from 8.2 chapter was answered, more than 411 students have viewed the full step-by-step answer.

Other solutions

People also purchased

Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

(In some of the exercises that follow, we must | Ch 8.2 - 2E