Mathematics, 10.04.2020 21:55 antmaan15
Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. When designing a study to determine this population proportion, what is the minimum number of drivers you would need to survey to be 95% confident that the population proportion is estimated to within 0.05?If it was later determined that it was important to be more than 95% confident and a new survey was commissioned, how would that affect the minimum number you would need to survey? Why?a. If the confidence level is increased, then the sample size would need to increase because a higher level of confidence increases the margin of error. b.If the confidence level is increased, then the sample size would need to decrease because increasing the sample size would create an even larger interval. c. If the confidence level is increased, then the sample size would need to decrease because we would like the proportion of people who buckle up to be around 50%.d. If the confidence level is increased, then the sample size would not be affected.
Answers: 3
Mathematics, 21.06.2019 17:00, trinityanne1738
Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?
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Mathematics, 21.06.2019 20:30, rafaelasoareschagas7
W-16=-12 solve each one step equation plz
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Mathematics, 21.06.2019 20:30, kaliyaht01
The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96
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Mathematics, 22.06.2019 01:30, shrinu
Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?
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Insurance companies are interested in knowing the population percent of drivers who always buckle up...
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