In Telephone Interviews with a Random Sample of 1,100 Online

question 10

Multiple Choice

In telephone interviews with a random sample of 1,100 online shoppers, shoppers said they expected to spend an average of $976 for online purchases this year.Using a sample standard deviation of $180, you build a 95% confidence interval estimate of the average spending for the population of online shoppers represented by the sample and determine the margin of error for your 95% interval.Now suppose you want to reduce the margin of error in your interval by 20% without sacrificing the 95% confidence level.How big a sample would be required?

• A)1096
• B)1718
• C)1461
• D)1528
• E)1637

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Definitions:

Educated Voters

Individuals who have received a sufficient level of education which potentially influences their voting decisions and political awareness.

Literate Slaves

Enslaved individuals who, despite prohibitions and significant barriers, learned to read and write, often using this knowledge in acts of resistance and to negotiate freedom.

British Writers

Authors originating from the United Kingdom, known for their contributions to literature.

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