Chapter 20 1. You are testing Ho:µ = 100 against Ha:µ < 100 based on an SRS of 16 observations from a Normal population. The data give ī = 98 and s = 4. The value of the t-statistic is: a) -8 b) -2 c) -0.5 2. You are testing Ho: µ = 100 against Ha:µ > 100 based on an SRS of 9 observations from a Normal population. The t statistic is t=2.10. The P-value for the statistic a) falls between 0.05 and 0.10 b) falls between 0.01 and 0.05 c) is less than 0.01 3. You have an SRS of four observations from a Normally distributed population. What critical value would you use to obtain an 80% confidence interval for the mean µ of the population? a) 1.533 b) 1.638 c) 2.353 4. You are testing Ho: µ = 0 against Ha:H # 0 based on an SRS of four observations from a Normal population. What values of the t statistic are statistically significant at the a=0.005 level? a) t> 7.453 b) t< -7.453 or t> 7.453 c) t< -5.598 or t> 5.598 5. Which of these settings does not allow use of a matched pairs t procedure? a) You interview both the instructor and one of the students in each of 20 introductory statistics classes and ask each how many hours per week homework assignment require. b) You interview a sample of 15 instructors and another sample of 15 students and ask each how many hours per week homework assignments require. c) You interview 40 students in the introductory statistics course at the beginning of the semester and again at the end of the semester and ask how many hours per week homework assignments require.
Chapter 20 1. You are testing Ho:µ = 100 against Ha:µ < 100 based on an SRS of 16 observations from a Normal population. The data give ī = 98 and s = 4. The value of the t-statistic is: a) -8 b) -2 c) -0.5 2. You are testing Ho: µ = 100 against Ha:µ > 100 based on an SRS of 9 observations from a Normal population. The t statistic is t=2.10. The P-value for the statistic a) falls between 0.05 and 0.10 b) falls between 0.01 and 0.05 c) is less than 0.01 3. You have an SRS of four observations from a Normally distributed population. What critical value would you use to obtain an 80% confidence interval for the mean µ of the population? a) 1.533 b) 1.638 c) 2.353 4. You are testing Ho: µ = 0 against Ha:H # 0 based on an SRS of four observations from a Normal population. What values of the t statistic are statistically significant at the a=0.005 level? a) t> 7.453 b) t< -7.453 or t> 7.453 c) t< -5.598 or t> 5.598 5. Which of these settings does not allow use of a matched pairs t procedure? a) You interview both the instructor and one of the students in each of 20 introductory statistics classes and ask each how many hours per week homework assignment require. b) You interview a sample of 15 instructors and another sample of 15 students and ask each how many hours per week homework assignments require. c) You interview 40 students in the introductory statistics course at the beginning of the semester and again at the end of the semester and ask how many hours per week homework assignments require.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Chapter 20
1. You are testing Ho:µ = 100 against Ha:µ < 100 based on an SRS of 16 observations from a Normal population.
The data give ī = 98 and s = 4. The value of the t-statistic is:
a) -8
b) -2
c) -0.5
2. You are testing Ho: µ = 100 against Ha:µ > 100 based on an SRS of 9 observations from a Normal population.
The t statistic is t=2.10. The P-value for the statistic
a) falls between 0.05 and 0.10
b) falls between 0.01 and 0.05
c) is less than 0.01
3. You have an SRS of four observations from a Normally distributed population. What critical value would you use
to obtain an 80% confidence interval for the mean µ of the population?
a) 1.533
b) 1.638
c) 2.353
4. You are testing Ho: µ = 0 against Ha:H # 0 based on an SRS of four observations from a Normal population.
What values of the t statistic are statistically significant at the a=0.005 level?
a) t> 7.453
b) t< -7.453 or t> 7.453
c) t< -5.598 or t> 5.598
5. Which of these settings does not allow use of a matched pairs t procedure?
a) You interview both the instructor and one of the students in each of 20 introductory statistics classes and ask each
how many hours per week homework assignment require.
b) You interview a sample of 15 instructors and another sample of 15 students and ask each how many hours per
week homework assignments require.
c) You interview 40 students in the introductory statistics course at the beginning of the semester and again at the
end of the semester and ask how many hours per week homework assignments require.
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