https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/docume OptionsV No results edium sized-approximately 1,200 students-small city demographic) to determine if the Tocal high school's percentage was lower. One hundred fifty students were chosen at random and surveyed. Of the 150 students surveyed, 82 have moked. Use a significance level of 0.05 and using appropriate statistical evidence, conduct a hypothesis test and state the conclusions. 77. A recent survey in the N.Y. Times Almanac indicated that 48.8% of families own stock. A broker wanted to determine if this survey could be valid. He surveyed a random sample of 250 families and found that 142 owned some type of stock At the 0.05 significance level, can the survey be considered to be accurate? 78. Driver error can be listed as the cause of approximately 54 % of all fatal auto accidents, according to the American Automobile ASSociation. Thirty randomly selected fatal accidents are examined, and it is determined that 14 were caused by driver error. Using a 0.05, is the AAA proportion accurate? 79. The US Department of Energy reported that 51.7 % of homes were heated by natural gas. A random sample of 221 homes in Kentucky found that 115 were heated by natural gas. Does the evidence support the claim for Kentucky at the a 0.05 level in Kentucky? Are the results applicable across the country? Why? 80. For Americans using library services, the American Library Association claims that at most 67% of patrons borrow books. The library director in Owensboro, Kentucky feels this is not true, so she asked a local college statistic class to conduct a survey. The class randomly selected 100 patrons and found that 82 borrowed books. Did the class demonstrate that the percentage was higher in Owensboro, KY? Use a = 0.01 level of significance. What is the possible proportion of patrons that do borrow books from the Owensboro Library? here to search 9:48 PM 11/25/2019 lip 8
https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/docume OptionsV No results edium sized-approximately 1,200 students-small city demographic) to determine if the Tocal high school's percentage was lower. One hundred fifty students were chosen at random and surveyed. Of the 150 students surveyed, 82 have moked. Use a significance level of 0.05 and using appropriate statistical evidence, conduct a hypothesis test and state the conclusions. 77. A recent survey in the N.Y. Times Almanac indicated that 48.8% of families own stock. A broker wanted to determine if this survey could be valid. He surveyed a random sample of 250 families and found that 142 owned some type of stock At the 0.05 significance level, can the survey be considered to be accurate? 78. Driver error can be listed as the cause of approximately 54 % of all fatal auto accidents, according to the American Automobile ASSociation. Thirty randomly selected fatal accidents are examined, and it is determined that 14 were caused by driver error. Using a 0.05, is the AAA proportion accurate? 79. The US Department of Energy reported that 51.7 % of homes were heated by natural gas. A random sample of 221 homes in Kentucky found that 115 were heated by natural gas. Does the evidence support the claim for Kentucky at the a 0.05 level in Kentucky? Are the results applicable across the country? Why? 80. For Americans using library services, the American Library Association claims that at most 67% of patrons borrow books. The library director in Owensboro, Kentucky feels this is not true, so she asked a local college statistic class to conduct a survey. The class randomly selected 100 patrons and found that 82 borrowed books. Did the class demonstrate that the percentage was higher in Owensboro, KY? Use a = 0.01 level of significance. What is the possible proportion of patrons that do borrow books from the Owensboro Library? here to search 9:48 PM 11/25/2019 lip 8
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 5E
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Please help with #79
Transcribed Image Text:https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/docume
OptionsV
No results
edium sized-approximately 1,200 students-small city demographic) to determine if the Tocal high school's percentage
was lower. One hundred fifty students were chosen at random and surveyed. Of the 150 students surveyed, 82 have
moked. Use a significance level of 0.05 and using appropriate statistical evidence, conduct a hypothesis test and state the
conclusions.
77. A recent survey in the N.Y. Times Almanac indicated that 48.8% of families own stock. A broker wanted to determine
if this survey could be valid. He surveyed a random sample of 250 families and found that 142 owned some type of stock
At the 0.05 significance level, can the survey be considered to be accurate?
78. Driver error can be listed as the cause of approximately 54 % of all fatal auto accidents, according to the American
Automobile ASSociation. Thirty randomly selected fatal accidents are examined, and it is determined that 14 were caused
by driver error. Using a 0.05, is the AAA proportion accurate?
79. The US Department of Energy reported that 51.7 % of homes were heated by natural gas. A random sample of 221
homes in Kentucky found that 115 were heated by natural gas. Does the evidence support the claim for Kentucky at the a
0.05 level in Kentucky? Are the results applicable across the country? Why?
80. For Americans using library services, the American Library Association claims that at most 67% of patrons borrow
books. The library director in Owensboro, Kentucky feels this is not true, so she asked a local college statistic class to
conduct a survey. The class randomly selected 100 patrons and found that 82 borrowed books. Did the class demonstrate
that the percentage was higher in Owensboro, KY? Use a = 0.01 level of significance. What is the possible proportion of
patrons that do borrow books from the Owensboro Library?
here to search
9:48 PM
11/25/2019
lip
8
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