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3 Of 266 employees selected randomly from one company, 13.53% of them commute by carpooling. Find the margin of error for a 90% confidence interval for the proportion of all employees of the company who carpool. a. 0.54 b. 0.53 OC. 0.03 O d. 0.43 Q11 Travelocity would like to test if the average roundtrip airfare between New York and London is less than $1,400. A Type I error would occur if Travelocity concludes that the average airfare is a. $1,400 or more when, in reality, the average airfare is less than $1,400. O b. equal to $1,400 when, in reality, the average airfare is not equal $1,400 or more. c. not equal to $1,400 when, in reality, the average airfare is equal to $1,400. O d. less than $1,400 when, in reality, the average airfare is $1,400 or more. A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for governor. Construct the 98% confidence interval for the proportion of all New York State union members who favor the Republican candidate. 0.316 to 0.430 0.301 to 0.445 0.308 to 0.438 O d. 0.304 to 0.442 O a. b. C. Q12 A sample mean of 137, sample standard deviation of 14.2, and sample size of 20, Hop-132, H1 μ 132, a=0.01 are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the P-value approach. Also, assess the strength of the evidence against the null hypothesis. a. Test statistic: t = 1.57. P-value = 0.15.&; Reject the null hypothesis. b. Test statistic: t = 1.57. P-value = 0.15.&; Do not reject null hypothesis. O c. Test statistic: t = 1.57. P-value = 0.05.&; Do not reject null hypothesis. O d. Test statistic: t = 1.57. P-value = 0.05.&; Reject null hypothesis.

3 Of 266 employees selected randomly from one company, 13.53% of them commute by carpooling. Find the margin of error for a 90% confidence interval for the proportion of all employees of the company who carpool. a. 0.54 b. 0.53 OC. 0.03 O d. 0.43 Q11 Travelocity would like to test if the average roundtrip airfare between New York and London is less than $1,400. A Type I error would occur if Travelocity concludes that the average airfare is a. $1,400 or more when, in reality, the average airfare is less than $1,400. O b. equal to $1,400 when, in reality, the average airfare is not equal $1,400 or more. c. not equal to $1,400 when, in reality, the average airfare is equal to $1,400. O d. less than $1,400 when, in reality, the average airfare is $1,400 or more. A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for governor. Construct the 98% confidence interval for the proportion of all New York State union members who favor the Republican candidate. 0.316 to 0.430 0.301 to 0.445 0.308 to 0.438 O d. 0.304 to 0.442 O a. b. C. Q12 A sample mean of 137, sample standard deviation of 14.2, and sample size of 20, Hop-132, H1 μ 132, a=0.01 are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the P-value approach. Also, assess the strength of the evidence against the null hypothesis. a. Test statistic: t = 1.57. P-value = 0.15.&; Reject the null hypothesis. b. Test statistic: t = 1.57. P-value = 0.15.&; Do not reject null hypothesis. O c. Test statistic: t = 1.57. P-value = 0.05.&; Do not reject null hypothesis. O d. Test statistic: t = 1.57. P-value = 0.05.&; Reject null hypothesis.

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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Q9 Of 266 employees selected randomly from one company, 13.53% of them commute by carpooling. Find the margin of error for a 90% confidence interval for the proportion of all employees of the company who carpool. Oa. 0.54 O b. 0.53 OC. 0.03 d. 0.43 Q11 Travelocity would like to test if the average roundtrip airfare between New York and London is less than $1,400. A Type I error would occur if Travelocity concludes that the average airfare is O a. $1,400 or more when, in reality, the average airfare is less than $1,400. O b. equal to $1,400 when, in reality, the average airfare is not equal $1,400 or more. O c. not equal to $1,400 when, in reality, the average airfare is equal to $1,400. d. less than $1,400 when, in reality, the average airfare is $1,400 or more. Q10 A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for governor. Construct the 98% confidence interval for the proportion of all New York State union members who favor the Republican candidate. O a. O b. O c. d. 0.316 to 0.430 0.301 to 0.445 0.308 to 0.438 0.304 to 0.442 Q12 A sample mean of 137, sample standard deviation of 14.2, and sample size of 20, Ho μ=132, H1 μ 132, a=0.01 are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the P-value approach. Also, assess the strength of the evidence against the null hypothesis. a. Test statistic: t = 1.57. P-value = 0.15.&; Reject the null hypothesis. b. Test statistic: t = 1.57. P-value = 0.15.&; Do not reject null hypothesis. c. Test statistic: t = 1.57. P-value = 0.05.&; Do not reject null hypothesis. d. Test statistic: t = 1.57. P-value = 0.05.&; Reject null hypothesis.
Transcribed Image Text:Q9 Of 266 employees selected randomly from one company, 13.53% of them commute by carpooling. Find the margin of error for a 90% confidence interval for the proportion of all employees of the company who carpool. Oa. 0.54 O b. 0.53 OC. 0.03 d. 0.43 Q11 Travelocity would like to test if the average roundtrip airfare between New York and London is less than $1,400. A Type I error would occur if Travelocity concludes that the average airfare is O a. $1,400 or more when, in reality, the average airfare is less than $1,400. O b. equal to $1,400 when, in reality, the average airfare is not equal $1,400 or more. O c. not equal to $1,400 when, in reality, the average airfare is equal to $1,400. d. less than $1,400 when, in reality, the average airfare is $1,400 or more. Q10 A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for governor. Construct the 98% confidence interval for the proportion of all New York State union members who favor the Republican candidate. O a. O b. O c. d. 0.316 to 0.430 0.301 to 0.445 0.308 to 0.438 0.304 to 0.442 Q12 A sample mean of 137, sample standard deviation of 14.2, and sample size of 20, Ho μ=132, H1 μ 132, a=0.01 are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the P-value approach. Also, assess the strength of the evidence against the null hypothesis. a. Test statistic: t = 1.57. P-value = 0.15.&; Reject the null hypothesis. b. Test statistic: t = 1.57. P-value = 0.15.&; Do not reject null hypothesis. c. Test statistic: t = 1.57. P-value = 0.05.&; Do not reject null hypothesis. d. Test statistic: t = 1.57. P-value = 0.05.&; Reject null hypothesis.
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