A survey conducted by CBS News asked 1,026 respondents: What would you do with an unexpected tax

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A survey conducted by CBS News asked 1,026 respondents: “What would you do with an unexpected tax refund?” The responses are summarized in the following table.

ResponseFrequency

Pay of debts.........482

Put it in the bank......308

Spend it..........112

I never get a refund.....103

Other............ 21

a. Construct the 90% confidence interval for the population proportion of those who would put the tax refund in the bank.

b. Construct the 90% confidence interval for the population proportion of those who never get a refund.

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Essentials Of Business Statistics Communicating With Numbers

ISBN: 9780078020544

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Authors: Sanjiv Jaggia, Alison Kelly

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Question Posted: Jan 28, 2015 10:08 AM

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A survey conducted by CBS News asked 1,026 respondents: What would you do with an unexpected tax

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n1026 a p 308 1026 0300 010 thus z 2 z 005 1645 ...View the full answer

Essentials Of Business Statistics Communicating With Numbers

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