×
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 7.3 - Problem 5e
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 7.3 - Problem 5e

×

# Refer to Exercises 3 and 4. An atmospheric scientist

ISBN: 9780073401331 38

## Solution for problem 5E Chapter 7.3

Statistics for Engineers and Scientists | 4th Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Statistics for Engineers and Scientists | 4th Edition

4 5 1 303 Reviews
25
1
Problem 5E

Problem 5E

Refer to Exercises 3 and 4. An atmospheric scientist notices that the slope of the least-squares line in the study described in Exercise 4 differs from the one in the study described in Exercise 3. He wishes to test the hypothesis that the effect of humidity on ozone level differs between the two cities. Let βA denote the change in ozone level associated with an increase of 1 percent relative humidity for the city in Exercise 3, and βB denote the corresponding increase for the city in Exercise 4.

a. Express the null hypothesis to be tested in terms of βA and βB.

b. Let  and  denote the slopes of the least-squares lines. Assume these slopes are independent. There are 120 observations in each data set. Test the null hypothesis in pan (a). Can you conclude that the effect of humidity differs between the two cities?

Step-by-Step Solution:
Step 1 of 3

Step 2 of 3

Step 3 of 3

#### Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

Refer to Exercises 3 and 4. An atmospheric scientist