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Spend some time looking at the vehicles on the road. Look at the first 40 vehicles...

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Statistics

Spend some time looking at the vehicles on the road. Look at thefirst 40 vehicles that drive by. Take note of the number ofvehicles that are cars (sedans). Use the data you collect toconstruct confidence interval estimates of the proportion ofvehicles that are cars (rather than trucks, vans, etc.). Reportyour confidence interval to the group. Why might people getdifferent results? Is your sample likely a good representation ofthe total population of all vehicles? Why or why not? Make sure youshow all your work and explain each of your steps to arrive at theconfidence interval.

Noted as 26 sedans out of the 40 vehicle thatdrove by.

Please help me solve this problem. thankyou.

Answer & Explanation Solved by verified expert
4.2 Ratings (481 Votes)
ANSWERGiven thatOut of 40 vehicles 26 were sedan The sample proportion is Also we get the standard error of p sp sp sqrtp 1 p n sqrt 065 1    See Answer
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