Answer all parts of the Question and detailed answer. 1. Pew research, in November 2011, polled a...
Answer all parts of the Question and detailed answer.
1. Pew research, in November 2011, polled a random sample of 799 US teens about internet use. 49% of those teens reported that they had misrepresented their age online to gain access to websites and online services.
a) Categorical or Quantitative Variable?
b) Is 49% a Sample statistic or Population parameter?
c) Should we use a z-distribution or t-distribution?
d) Calculate a 90% confidence interval using STAT TESTS #A.
e) Interpret your interval in the context of the problem.
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Answer all parts of the Question and detailed answer. 1. Pew research, in November 2011, polled a...
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6.1.5 Question Help A research company polled a random sample of 528 teens about Internet use....
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Question 29 According to a Pew Research Center study, in May 2011, 30% of all American...
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Question 9 According to a Pew Research Center study, in May 2011, 34% of all American...
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Question 8 According to a Pew Research Center study, in May 2011, 31% of all American Type numbers in the boxes adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 365 community college students at random and finds that 115 of them have a smart phone. Then in testing the hypotheses: H:p=0.31...
1 questions According to a Pew Research Center study, in May 2011, 39% of all American...
1 questions
According to a Pew Research Center study, in May 2011, 39% of all American Type numbers in the boxes. adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 448 community college students at random and finds that 188 of them have a smart phone. Then in testing the hypotheses: H:...
According to a Pew Research Center, in May 2011, 35% of all American adults had a...
According to a Pew Research Center, in May 2011, 35% of all American adults had a smartphone (one which the user can use to read email and surf the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 300 community college students at random and finds that 114 of them have a smartphone. In testing the hypotheses: H0: p = 0.35 versus HA: p > 0.35, she calculates the test statistic...
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6.1.5 Question Help A research company polled a random sample of 528 teens about Internet use. 48 % of those teens reported going online several times a day-a fact of great interest to advertisers. Complete parts a through c below. a) Explain the meaning of p 0.48 in the context of this situation. O A. The meaning of p 0.48 is that the researchers have 95 % confidence that 48 % of the 528 teens in the sample said they...
Question 8 According to a Pew Research Center study, in May 2011, 36% of all American Typen adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 371 community college students at random and finds that 136 of them have a smart phone. Then in testing the hypotheses: Ho: P = 0.36 versus...
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1 questions
According to a Pew Research Center study, in May 2011, 39% of all American Type numbers in the boxes. adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 448 community college students at random and finds that 188 of them have a smart phone. Then in testing the hypotheses: H:...
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