Fundamentals of Statistics (5th Edition)
5th Edition
ISBN: 9780134508306
Author: Michael Sullivan III
Publisher: PEARSON
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Textbook Question
Chapter B.6, Problem 32AYU
Why does a large value of the F statistic provide evidence against the null hypothesis
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Which of following is not true about Type I error?
The alpha (x) level
False positive
Rejecting the null hypothesis when in reality it is true.
Accepting (not rejecting) the null hypothesis when in reality it is false.
TRUE OR FALSE
If a test value is in the critical region with a=0.01, it would still be in the critical region even if the alpha was changed to =0.05.
If a researcher obtains a test score of z=1.7 for a hypothesis test using =0.05, then the researcher should reject the null hypothesis for a right-tailed test. In addition, the researcher should also reject the null hypothesis for a two-tailed test.
The z test formula uses the sample standard deviation while the t test formula uses the population standard deviation.
The critical t value(s) depends on the degrees of freedom associated with the t test value.
A type I error occurs when a researcher unknowingly obtains an extreme non-representative example.
The null hypothesis should be rejected if the test value is -2.8, =0.01, and the test is left-tailed.
The variance of the standard normal distribution and the t-distribution is 1.
A test of the null hypothesis H0: μ= μ0 gives test statistic z = 1.63.
What is the P-value if the alternative is Ha: μ > μ0?
What is the P-value if the alternative is Ha: μ < μ0?
What is the P-value if the alternative is Ha: μ ≠ μ0?
Chapter B.6 Solutions
Fundamentals of Statistics (5th Edition)
Ch. B.6 - The acronym ANOVA stands for __________ __...Ch. B.6 - True or False: To perform a one-way ANOVA, the...Ch. B.6 - True or False: To perform a one-way ANOVA, the...Ch. B.6 - The variability among the sample means is called...Ch. B.6 - The variability within each treatment group, which...Ch. B.6 - True or False: The F-test statistic is F0=MSTMSE.Ch. B.6 - In Problems 7 and 8, fill in the ANOVA table. 7.Ch. B.6 - In Problems 7 and 8, fill in the ANOVA table. 8.Ch. B.6 - In Problems 9 and 10, determine the F-test...Ch. B.6 - In Problems 9 and 10, determine the F-test...
Ch. B.6 - NW 11. The following data represent a simple...Ch. B.6 - The following data represent a simple random...Ch. B.6 - NW 13. Corn Production The data in the table...Ch. B.6 - Soybean Yield The data in the table represent the...Ch. B.6 - Which Delivery Method Is Best? At a community...Ch. B.6 - Births by Day of Week An obstetrician knew that...Ch. B.6 - Rates of Return A stock analyst wondered whether...Ch. B.6 - Reaction Time In an online psychology experiment...Ch. B.6 - Car-Buying Discrimination To determine if there is...Ch. B.6 - Crash Data The Insurance Institute for Highway...Ch. B.6 - Lower Your Cholesterol Researcher Francisco...Ch. B.6 - pH in Rain An environmentalist wanted to determine...Ch. B.6 - Age and Politics Do peoples political philosophy...Ch. B.6 - Concrete Strength An engineer wants to know if the...Ch. B.6 - Analyzing Journal Article Results Researchers...Ch. B.6 - Prob. 27AYUCh. B.6 - Diversity and pH The following data represent the...Ch. B.6 - Another E-Cig Study In a study of adult smokers...Ch. B.6 - What are the requirements to perform a one-way...Ch. B.6 - What is the mean square due to treatment estimate...Ch. B.6 - Why does a large value of the F statistic provide...Ch. B.6 - In a one-way ANOVA, explain what it means to...
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