Mathematics, 05.12.2019 21:31 naomicervero
An article summarized results from a national survey of 2302 americans age 8 to 18. the sample was selected in a way that was expected to result in a sample representative of americans in this age group. (a) of those surveyed, 1221 reported owning a cell phone. use this information to construct a 90% confidence interval estimate of the proportion of all americans age 8 to 18 who own a cell phone. (round your answers to three decimal places.) (b) of those surveyed, 1529 reported owning an mp3 music player. use this information to construct a 90% confidence interval estimate of the proportion of all americans age 8 to 18 who own an mp3 music player.
an article included the following statement: "few people believe there's much reality in reality tv: a total of 76% said the shows are either 'totally made up' or 'mostly distorted.'" this statement was based on a survey of 1005 randomly selected adults. compute a bound on the error (based on 95% confidence) of estimation for the reported proportion of 0.76. (round your answer to three decimal places.)interpret the bound.
Answers: 3
Mathematics, 21.06.2019 14:20
At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x
Answers: 2
Mathematics, 21.06.2019 20:30
choose the correct definition for extremo. a. end b. extra c. extract d. eventual
Answers: 2
An article summarized results from a national survey of 2302 americans age 8 to 18. the sample was s...
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