Statistics Problems - 10

6/13/2019 Assignment Print View

ezto.mheducation.com/hm.tpx?todo=c15SinglePrintView&singleQuestionNo=3.&postSubmissionView=13252709085942207&wid=1325271139933129… 1/1

3. Award: 0.16 points    

The owner of the West End Kwick Fill Gas Station wishes to determine the proportion of customers who pay at the pump using a credit card or debit card. He surveys 100 customers and finds that 80 paid at the pump. (Round your answers to 2 decimal places.) b. Develop a 95% confidence interval for the population proportion. Confidence interval for the population proportion is between

and .

References

Worksheet Learning Objective: 09-01 Compute and interpret a point estimate of a population mean.

Difficulty: 2 Intermediate

Learning Objective: 09-03 Compute and interpret a confidence interval for a population proportion.