300 people from the 66-69 age group who did not complete high school, 171 were not prepared financially for retirement. What is the p-value for yo t statistic. (Round your answer to two decimal places.) d your answer to four decimal places.) ar conclusion? nclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Suppose in 2018, RAND Corporation researchers found that 73% of all individuals ages 66 to 69 are adequately prepared financially for retirement. Many financial planners have expressed concern that a smaller
percentage of those in this age group who did not complete high school are adequately prepared financially for retirement.
(a) Develop appropriate hypotheses such that rejection of H, will support the conclusion that the proportion of those who are adequately prepared financially for retirement is smaller for people in the 66-69 age
group who did not complete high school than it is for the population of the 66-69 year old. (Enter != for # as needed.)
Ho:
Ha:
(b) In a random sample of 300 people from the 66-69 age group who did not complete high school, 171 were not prepared financially for retirement. What is the p-value for your hypothesis test?
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to four decimal places.)
p-value =
(c) At a = 0.01, what is your conclusion?
O Reject H. We conclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not complete high school.
Do not reject H. We cannot conclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not complete high
school.
Do not reject Ho: We conclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not complete high school.
O Reject Ho. We cannot conclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not complete high school.
Transcribed Image Text:Suppose in 2018, RAND Corporation researchers found that 73% of all individuals ages 66 to 69 are adequately prepared financially for retirement. Many financial planners have expressed concern that a smaller percentage of those in this age group who did not complete high school are adequately prepared financially for retirement. (a) Develop appropriate hypotheses such that rejection of H, will support the conclusion that the proportion of those who are adequately prepared financially for retirement is smaller for people in the 66-69 age group who did not complete high school than it is for the population of the 66-69 year old. (Enter != for # as needed.) Ho: Ha: (b) In a random sample of 300 people from the 66-69 age group who did not complete high school, 171 were not prepared financially for retirement. What is the p-value for your hypothesis test? Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = (c) At a = 0.01, what is your conclusion? O Reject H. We conclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not complete high school. Do not reject H. We cannot conclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not complete high school. Do not reject Ho: We conclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not complete high school. O Reject Ho. We cannot conclude that the percentage of 66- to 69-year-old individuals who are adequately prepared financially for retirement is smaller for those who did not complete high school.
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