Management Statistics BADM 225-02 fall 2017 Lorena Sampedr Homework: On Confiden

Question

Management Statistics BADM 225-02 fall 2017 Lorena Sampedr Homework: On Confidence Interval Score: 0.4 of 1 pt 18120 (18 complete) HW Score: 73%, 14.6 of 2 8.4.34-T Question Hep t was reported that 63% ofindividual tax returns were fied electron aly i 2012 A random sa ple of 325 tax returns fr m 2013 was selected. From this sample, 211 were filed electronically. Complete parts a through c below. a Construct a 90% confidence interval to estimate te actual proportion of taxpayers who filed electronically in 2013. A 90% confidence interval to estimate the actual proportion has a lower limit of 0.606 and an upper limt of 0693 Round to three decimal places as needed.) b. What is the margin of error for this sample? The margin of error is Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer 0 8

Explanation / Answer

b) Margin of error = (Upper limit - Lower limit)/2 = (0.693 - 0.606)/2 = 0.087/2 = 0.044

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