Answered: prding to a local survey, 38% of those… | bartleby

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 28PPS

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Hello can you help me with this please

According to a local survey, 38% of those living in Denmark claim to speak English well. In the same
survey, 64% of those living in Denmark reported not knowing how to speak German well. Which
two-way table represents this information?
Speaks Well
(%)
Does Not
Speak Well (%)
English
German
36
64
38
62
ов.
Speaks Well
(%)
Does Not
Speak Well (%)
English
46
64
German
38
72
O D.
Speaks Well
(%)
Does Not
Speak Well (%)
English
German
38
62
36
64
A.
Speaks Well
Does Not

В.
Speaks Well
(%)
Does Not
Speak Well (%)
English
German
64
72
46
38
O 'D.
Speaks Well
(%)
Does Not
Speak Well (%)|
English
38
62
German
36
64
А.
Speaks Well
(%)
Does Not
Speak Well (%)
English
German
38
72
46
64
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what would be a careful interpretation of the 12% in the two-way table?
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The U.S. Department of Transportation reported that during November, 83.4% of Southwest Airlines' flights, 75.1% of US Airways' flights, and 70.1% of JetBlue's flights arrived on time (USA Today, January 4, 2007). Assume that this on - time performance is applicable for flights arriving at concourse A of the Rochester International Airport, and that 40% of the arrivals at concourse A are Southwest Airlines flights, 35% are US Airways flights, and 25% are JetBlue flights. An announcement has just been made that Flight 1424 will be arriving at gate 20 in concourse A. What is the most likely airline for this arrival? What is the probability that Flight 1424 will arrive on time? Suppose that an announcement is made saying that Flight 1424 will be arriving late. What is the most likely airline for this arrival? What is the least likely airline? Develop a joint probability table with three rows (airlines) and two columns (on-time arrivals vs. late arrivals). What is the highest probability…
According to the American Management Association, most U.S. companies now test at least some employees and job applicants for drug use. The U.S. National Institute on Drug Abuse claims that about 15% of people in the 18-25 age bracket use illegal drugs. Allyn Clark, a 21 year-old college graduate, applied for a job at the Acton Paper Company, took a drug test, and was not offered a job. He suspected that he might have failed the drug test, even though he does not use drugs. In checking with the company's personnel department, he found that the drug test has 99% sensitivity, which means that only 1% of drug users incorrectly test negative. Also, the test has 98% specificity, meaning that only 2% of nonusers are incorrectly identified as drug users. Allyn felt relieved by these figures because he believed that they reflected a very reliable test that usually provides good results. But is this really true? The accompanying table shows data for Allyn and 1,499 other job applicants. Based…
According to the Pew Research Center,on the propotion of the American population who use only a cellular telephone (landline) is 0.37. Jason conducts a survey of one hundred fifty 20 to 24 year olds who live on their own and finds that 73 do not have a landline to their home. Does this provide sufficient evidence to conclude that the proportion of 20 to 24 year olds who live on their own and don't have a landline is greater than 0.37? Use a=0.10 level of significance. A) Verify that nP0(1-P0)>10 and n< 0.05N (Assume the population sizes is N=40 million) B) State the appropiate null and alternative hypotheses. C) Indicate whether the hypothesis is left, right, or two- tailed.
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