×
Log in to StudySoup
Get Full Access to Elementary Statistics - 12 Edition - Chapter 11.3 - Problem 1 re
Join StudySoup for FREE
Get Full Access to Elementary Statistics - 12 Edition - Chapter 11.3 - Problem 1 re

Already have an account? Login here
×
Reset your password

Solved: Auto Fatalities The table below lists auto

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 1 RE Chapter 11.3

Elementary Statistics | 12th Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

4 5 1 394 Reviews
10
0
Problem 1 RE

Auto Fatalities The table below lists auto fatalities by day of the week for a recent year (based on data from the Federal Highway Administration).

Minitab results are also shown. Use a 0.01 significance level to test the claim that auto fatalities occur on the different days of the week with the same frequency. Can you provide an explanation for the results?

MINITAB

Step-by-Step Solution:

Answer:

Step 1 of 2

The expected values for each category, Ei , could be determined. With these observed and expected numbers of cases, the hypotheses can be written as

H0 : the claim that auto fatalities occur on the different days of the week with the same frequency

H1 : the claim that auto fatalities occur on the different days of the week with the different frequency.

Use a 0.05 significance level

SL. No.

O

p = 1/7

E = np

(O - E )2

(O - E)2/E

1

3797

0.142857

4399.571

363092.3

82.52902

2

3615

0.142857

4399.571

615552.3

139.9119

3

3724

0.142857

4399.571

456396.8

103.7366

4

4004

0.142857

4399.571

156476.8

35.56636

5

4867

0.142857

4399.571

218489.5

49.66153

6

5786

0.142857

4399.571

1922184

436.9026

7

5004

0.142857

4399.571

365333.9

83.03852

Sum

30797

1

30797

4097526

931.3466

The first step in conducting the significance test is to compute the expected frequency for each outcome given that the null hypothesis is true. For example, the expected frequency of a "1" is 7 since the probability of a "1" coming up is 1/7 and there were a total of 30797.

Expected frequency (E) = np

                                       = 30797(1/7)

                                       = 4399.571

The calculation continues as follows. Letting E be the expected frequency of an outcome and O be the observed frequency of that outcome.

Step 2 of 2

Chapter 11.3, Problem 1 RE is Solved
Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

Other solutions

Discover and learn what students are asking

Calculus: Early Transcendental Functions : The Natural Logarithmic Function: Integration
?In Exercises 1-26, find the indefinite integral. \(\int \frac{10}{x} d x\)


Calculus: Early Transcendental Functions : Differentiation and Integration of Vector-Valued Functions
?Differentiation of Vector-Valued Functions In Exercises 1-6, find r’(t), \(\mathrm{r}\left(t_{0}\right)\), and \(\mathrm{r’}\left(t_{0}\right)\) for t

Calculus: Early Transcendental Functions : Introduction to Functions of Several Variables
?In Exercises 7-18, find and simplify the function values. \(f(x, y)=2 x+y^{2}\) (a) \(\frac{f(x+\Delta x, y)-f(x, y)}{\Delta x}\)




Statistics: Informed Decisions Using Data : Two-Way Analysis of Variance
?To graphically display the role interaction plays in a factorial design, we draw ______.



Statistics: Informed Decisions Using Data : Inference about the Difference between Two Medians: Dependent Samples
?In Problems 3–10, use the Wilcoxon matched-pairs signedranks test to test the given hypotheses at the a = 0.05 level of significance. The dependent sa


People also purchased

Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

Solved: Auto Fatalities The table below lists auto