nyP Sus the R 8 Review Exercises CHAPTER 8 R he Internet of Things. The Internet
ID: 2923848 • Letter: N
Question
nyP Sus the R 8 Review Exercises CHAPTER 8 R he Internet of Things. The Internet of $73 T Things ns(IoT) refers to connecting computers, phones, many other types of devices so that they can nicate and interact with each other.7 A Pew study asked a panel of 1,606 experts whether co they thought that the loT would have "widespread and cial effects on the everyday lives of the public 25” Eighty-tree percent of the panel gave a by 20 positive response. (a) How many of the experts responded Yes to the question? Show your work. (b) Describe the population proportion for this setting. (c) What is the sample proportion? Show your work. d) What is the standard error for the sample proportion? Show your work. (e) What is the margin of error for 95% confidence? Show your work. (f) Give the 95% confidence interval for the population proportion.Explanation / Answer
A) 1606 * (83/100) = 1332.98 = 133
B) population proportion = 0.83
C) Population proportion = 1333/1606 = 0.83
D) standard error = sqrt (P * (1 - P)/n)
= sqrt(0.83 * 0.17/1606) = 0.0094
E) Margin of error for 85% confidence interval = 1.96 * 0.0094 = 0.0184
F) confidence interval = P +/- margin of error
= 0.83 +/- 0.0184
= 0.8116, 0.8484
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