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
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
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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