Education influences attitude and lifestyle. Differences in education are a big factor in the "generation gap." Is the younger generation really better educated? Large surveys of people age 65 and older were taken in n, - 37 U.S. cities. The sample mean for these cities showed that x, - 15.2% of the older adults had attended college. Large surveys of young adults (age 25 - 34) were taken in n, = 38s U.S. cities. The sample mean for these cities showed that x, = 17.7% of the young adults had attended college. From previous studies, it is known that e, = 6.6% and az = 4.6%. Does this information indicate that the population mean percentage of young adults who attended college is higher? Use a - 0.0s. (a) What is the level of significance? State the null and alternate hypotheses. O Hạ: Hy " Hai H > Hz O Hạ: H = Hzi Hzi Hi" Hz (b) What sampling distribution will you use? What assumptions are you making? O The Student's t. We assume that both population distributions are approximately normal with known standard deviations. O The standard normal. We assume that both population distributions are approximately normal with known standard deviations. O The standard normal. We assume that both population distributions are approximately normal with unknown standard deviations. O The Student's t. We assume that both population distributions are approximately normal with unknown standard deviations. What is the value of the sample test statistic? (Test the difference , - 2 Round your answer to two decimal places.) (C) Find (or estimate) the P-value. (Round your answer to four decimal places.) Sketch the sampling distribution and show the area corresponding to the P.value.
Education influences attitude and lifestyle. Differences in education are a big factor in the "generation gap." Is the younger generation really better educated? Large surveys of people age 65 and older were taken in n, - 37 U.S. cities. The sample mean for these cities showed that x, - 15.2% of the older adults had attended college. Large surveys of young adults (age 25 - 34) were taken in n, = 38s U.S. cities. The sample mean for these cities showed that x, = 17.7% of the young adults had attended college. From previous studies, it is known that e, = 6.6% and az = 4.6%. Does this information indicate that the population mean percentage of young adults who attended college is higher? Use a - 0.0s. (a) What is the level of significance? State the null and alternate hypotheses. O Hạ: Hy " Hai H > Hz O Hạ: H = Hzi Hzi Hi" Hz (b) What sampling distribution will you use? What assumptions are you making? O The Student's t. We assume that both population distributions are approximately normal with known standard deviations. O The standard normal. We assume that both population distributions are approximately normal with known standard deviations. O The standard normal. We assume that both population distributions are approximately normal with unknown standard deviations. O The Student's t. We assume that both population distributions are approximately normal with unknown standard deviations. What is the value of the sample test statistic? (Test the difference , - 2 Round your answer to two decimal places.) (C) Find (or estimate) the P-value. (Round your answer to four decimal places.) Sketch the sampling distribution and show the area corresponding to the P.value.
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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![Education influences attitude and lifestyle. Differences in education are a big factor in the "generation gap." Is the younger generation really better educated? Large
surveys of people age 65 and older were taken in n, = 37 U.S. cities. The sample mean for these cities showed that x = 15.2% of the older adults had attended
college. Large surveys of young adults (age 25 - 34) were taken in n, = 38 U.S. cities. The sample mean for these cities showed that x, = 17.7% of the young adults
had attended college. From previous studies, it is known that az = 6.6% and az = 4.6%. Does this information indicate that the population mean percentage of
young adults who attended college is higher? Use a = 0.05.
(a) What is the level of significance?
State the null and alternate hypotheses.
O Hg: H1 = Hai H: H1 > H2
O Hg: H1 < Hai H: H1 = H2
O Hg: H1 = Hai H: M* H2
O Hg: M1- H2; H: H1 < 42
(b) What sampling distribution will you use? What assumptions are you making?
O The Student's t. We assume that both population distributions are approximately normal with known standard deviations.
O The standard normal. We assume that both population distributions are approximately normal with known standard deviations.
O The standard normal. We assume that both population distributions are approximately normal with unknown standard deviations.
O The Student's t. We assume that both population distributions are approximately normal with unknown standard deviations.
What is the value of the sample test statistic? (Test the difference 41
H2. Round your answer to two decimal places.)
(C) Find (or estimate) the P-value. (Round your answer to four decimal places.)
Sketch the sampling distribution and show the area corresponding to the P-value.
Pvalue
Pvalue](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F80204a87-6453-4715-bbbe-0e980579f971%2Fdc8bdd23-3be8-408d-a257-d2385f77d045%2F0cs5og_processed.png&w=3840&q=75)
Transcribed Image Text:Education influences attitude and lifestyle. Differences in education are a big factor in the "generation gap." Is the younger generation really better educated? Large
surveys of people age 65 and older were taken in n, = 37 U.S. cities. The sample mean for these cities showed that x = 15.2% of the older adults had attended
college. Large surveys of young adults (age 25 - 34) were taken in n, = 38 U.S. cities. The sample mean for these cities showed that x, = 17.7% of the young adults
had attended college. From previous studies, it is known that az = 6.6% and az = 4.6%. Does this information indicate that the population mean percentage of
young adults who attended college is higher? Use a = 0.05.
(a) What is the level of significance?
State the null and alternate hypotheses.
O Hg: H1 = Hai H: H1 > H2
O Hg: H1 < Hai H: H1 = H2
O Hg: H1 = Hai H: M* H2
O Hg: M1- H2; H: H1 < 42
(b) What sampling distribution will you use? What assumptions are you making?
O The Student's t. We assume that both population distributions are approximately normal with known standard deviations.
O The standard normal. We assume that both population distributions are approximately normal with known standard deviations.
O The standard normal. We assume that both population distributions are approximately normal with unknown standard deviations.
O The Student's t. We assume that both population distributions are approximately normal with unknown standard deviations.
What is the value of the sample test statistic? (Test the difference 41
H2. Round your answer to two decimal places.)
(C) Find (or estimate) the P-value. (Round your answer to four decimal places.)
Sketch the sampling distribution and show the area corresponding to the P-value.
Pvalue
Pvalue
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