Statistical Techniques in Business and Economics
18th Edition
ISBN: 9781260579611
Author: Douglas Lind; William Marchal; Samuel Wathen
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 12, Problem 12E
The following are six observations collected from treatment 1, ten observations collected from treatment 2, and eight observations collected from treatment 3. Test the hypothesis that the treatment means are equal at the .05 significance level.
- a. State the null hypothesis and the alternate hypothesis.
- b. What is the decision rule?
- c. Compute SST, SSE, and SS total.
- d. Complete an ANOVA table.
- e. State your decision regarding the null hypothesis.
- f. If H0 is rejected, can we conclude that treatment 2 and treatment 3 differ? Use the 95% level of confidence.
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Students have asked these similar questions
For an ANOVA comparing three treatment conditions, what is stated by the null hypothesis (H0)?
a. There are no differences between any of the population means.
b. At least one of the three population means is different from another mean.
c. All three of the population means are different from each other.
d. None of the other choices is correct.
The accompanying table lists body temperatures (in °F) obtained from randomly selected subjects. Using a 0.05
significance level, test for an interaction between gender and smoking, test for an effect from gender, and test for an
effect from smoking. What do you conclude?
Click the icon to view the body temperature data.
First test for an interaction between the two factors. Determine the null and alternative hypotheses. Choose the correct
answer below.
A. Ho: Body temperatures are not affected by gender.
H₁: Body temperatures are affected by gender.
B. Ho: Body temperatures are not affected by an interaction between gender and smoking.
H₁: Body temperatures are affected by an interaction between gender and smoking.
C. Ho: Body temperatures are affected by an interaction between gender and smoking.
H₁: Body temperatures are not affected by an interaction between gender and smoking.
D. Ho: Body temperatures are not affected by smoking.
H₁: Body temperatures are affected by smoking.…
Test the claim that the proportion of people who own cats is significantly different than 50% at the 0.01 significance level.The null and alternative hypothesis would be:
H0:p=0.5H0:p=0.5H1:p≠0.5H1:p≠0.5
H0:μ=0.5H0:μ=0.5H1:μ≠0.5H1:μ≠0.5
H0:p≤0.5H0:p≤0.5H1:p>0.5H1:p>0.5
H0:μ≥0.5H0:μ≥0.5H1:μ<0.5H1:μ<0.5
H0:p≥0.5H0:p≥0.5H1:p<0.5H1:p<0.5
H0:μ≤0.5H0:μ≤0.5H1:μ>0.5H1:μ>0.5
The test is:
left-tailed
two-tailed
right-tailed
Based on a sample of 700 people, 43% owned catsThe p-value is: (to 2 decimals)Based on this we:
Reject the null hypothesis
Fail to reject the null hypothesis
Chapter 12 Solutions
Statistical Techniques in Business and Economics
Ch. 12 - Steele Electric Products Inc. assembles cell...Ch. 12 - What is the critical F value when the sample size...Ch. 12 - Prob. 2ECh. 12 - Prob. 3ECh. 12 - Prob. 4ECh. 12 - Prob. 5ECh. 12 - Prob. 6ECh. 12 - Prob. 2SRCh. 12 - Prob. 7ECh. 12 - Prob. 8E
Ch. 12 - Prob. 9ECh. 12 - Prob. 10ECh. 12 - Prob. 3SRCh. 12 - Prob. 11ECh. 12 - The following are six observations collected from...Ch. 12 - Prob. 13ECh. 12 - Prob. 14ECh. 12 - Prob. 4SRCh. 12 - Prob. 15ECh. 12 - For exercises 15 and 16, conduct a test of...Ch. 12 - Prob. 17ECh. 12 - Prob. 18ECh. 12 - Prob. 5SRCh. 12 - Prob. 19ECh. 12 - Prob. 20ECh. 12 - Prob. 21ECh. 12 - Prob. 22ECh. 12 - Prob. 23CECh. 12 - Prob. 24CECh. 12 - Prob. 25CECh. 12 - Prob. 26CECh. 12 - In an ANOVA table, the MSE is equal to 10. Random...Ch. 12 - Prob. 28CECh. 12 - Prob. 29CECh. 12 - Prob. 30CECh. 12 - Prob. 31CECh. 12 - Prob. 32CECh. 12 - Prob. 33CECh. 12 - Prob. 34CECh. 12 - Prob. 35CECh. 12 - Prob. 36CECh. 12 - Prob. 37CECh. 12 - Prob. 38CECh. 12 - Prob. 39CECh. 12 - Prob. 40CECh. 12 - Prob. 41CECh. 12 - Prob. 42CECh. 12 - Prob. 43CECh. 12 - Prob. 44CECh. 12 - Prob. 45CECh. 12 - Prob. 46CECh. 12 - Prob. 47CECh. 12 - Prob. 48CECh. 12 - Prob. 50DACh. 12 - Prob. 51DACh. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 1CCh. 12 - Prob. 2CCh. 12 - Prob. 1.1PTCh. 12 - The likelihood of rejecting a true null hypothesis...Ch. 12 - Prob. 1.3PTCh. 12 - Prob. 1.4PTCh. 12 - Prob. 1.5PTCh. 12 - Prob. 1.6PTCh. 12 - In a two-tailed test, the rejection region is...Ch. 12 - Prob. 1.8PTCh. 12 - Prob. 1.9PTCh. 12 - Prob. 1.10PTCh. 12 - Prob. 2.1PTCh. 12 - Prob. 2.2PTCh. 12 - Prob. 2.3PT
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