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Question 6: A hypothesis test results in the rejection of the null hypothesis at significance level a=0.05. What is the result if the test is redone at significance level a=0.01, with all other test parameters remaining the same? (a) The null hypothesis is still rejected with a higher power value (b) The null hypothesis is still rejected with a lower power value (c) The null hypothesis may not be rejected with a higher power value (d) The null hypothesis may not be rejected with a lower power value Question 7: Of the following scenarios, which produces the narrowest confidence interval? (a) 95% confidence level with n=20 (c) 90% confidence level with n=20 (b) 95% confidence level with n=100 (d) 90% confidence level with n=100 Question 8: Which of the following statements is true? (a) Mutually exclusive events are independent (b) According to Bayes' rule, P(B|A)P(B) = P(A|B)P(A) (c) If the true value of u approaches (but not attains) the hypothesized µ value, ß increases (d) If X and Y are independent random variables, then Cov (X, Y) = 0

Question 6: A hypothesis test results in the rejection of the null hypothesis at significance level a=0.05. What is the result if the test is redone at significance level a=0.01, with all other test parameters remaining the same? (a) The null hypothesis is still rejected with a higher power value (b) The null hypothesis is still rejected with a lower power value (c) The null hypothesis may not be rejected with a higher power value (d) The null hypothesis may not be rejected with a lower power value Question 7: Of the following scenarios, which produces the narrowest confidence interval? (a) 95% confidence level with n=20 (c) 90% confidence level with n=20 (b) 95% confidence level with n=100 (d) 90% confidence level with n=100 Question 8: Which of the following statements is true? (a) Mutually exclusive events are independent (b) According to Bayes' rule, P(B|A)P(B) = P(A|B)P(A) (c) If the true value of u approaches (but not attains) the hypothesized µ value, ß increases (d) If X and Y are independent random variables, then Cov (X, Y) = 0

MATLAB: An Introduction with Applications
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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Question 4: According to historic data, on average, 5 traffic accidents occur per month at intersection A. If the probability that more than 2 accidents happen at that intersection is more than a given threshold p, the municipality will take corrective actions to improve the intersection safety. You have been asked to investigate if the municipality should take corrective actions or not. What type of probability distribution should you use to check this and is this a discrete or continuous probability distribution? (a) Normal, Continuous (c) Binomial, Discrete (b) Poisson, Discrete (d) Exponential, Continuous Question 5: Which of the following distributions does not have a symmetric form? (a) Z~N(0,1) (c) t-distribution (b) Uniform distribution (d) x? distribution Page 2 of 8 IE 342 Spring 2021_Final Exam Question 6: A hypothesis test results in the rejection of the null hypothesis at significance level a=0.05. What is the result if the test is redone at significance level a=0.01, with all other test parameters remaining the same? (a) The null hypothesis is still rejected with a higher power value (b) The null hypothesis is still rejected with a lower power value (c) The null hypothesis may not be rejected with a higher power value (d) The null hypothesis may not be rejected with a lower power value Question 7: Of the following scenarios, which produces the narrowest confidence interval? (a) 95% confidence level with n=20 (c) 90% confidence level with n=20 (b) 95% confidence level with n=100 (d) 90% confidence level with n=100 Question 8: Which of the following statements is true? (a) Mutually exclusive events are independent (b) According to Bayes' rule, P(B|A)P(B) = P(A|B)P(A) (c) If the true value of u approaches (but not attains) the hypothesized u value, ß increases (d) If X and Y are independent random variables, then Cov (X, Y) = 0
Transcribed Image Text:Question 4: According to historic data, on average, 5 traffic accidents occur per month at intersection A. If the probability that more than 2 accidents happen at that intersection is more than a given threshold p, the municipality will take corrective actions to improve the intersection safety. You have been asked to investigate if the municipality should take corrective actions or not. What type of probability distribution should you use to check this and is this a discrete or continuous probability distribution? (a) Normal, Continuous (c) Binomial, Discrete (b) Poisson, Discrete (d) Exponential, Continuous Question 5: Which of the following distributions does not have a symmetric form? (a) Z~N(0,1) (c) t-distribution (b) Uniform distribution (d) x? distribution Page 2 of 8 IE 342 Spring 2021_Final Exam Question 6: A hypothesis test results in the rejection of the null hypothesis at significance level a=0.05. What is the result if the test is redone at significance level a=0.01, with all other test parameters remaining the same? (a) The null hypothesis is still rejected with a higher power value (b) The null hypothesis is still rejected with a lower power value (c) The null hypothesis may not be rejected with a higher power value (d) The null hypothesis may not be rejected with a lower power value Question 7: Of the following scenarios, which produces the narrowest confidence interval? (a) 95% confidence level with n=20 (c) 90% confidence level with n=20 (b) 95% confidence level with n=100 (d) 90% confidence level with n=100 Question 8: Which of the following statements is true? (a) Mutually exclusive events are independent (b) According to Bayes' rule, P(B|A)P(B) = P(A|B)P(A) (c) If the true value of u approaches (but not attains) the hypothesized u value, ß increases (d) If X and Y are independent random variables, then Cov (X, Y) = 0
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