JaySavage7001

09.04.2021 • 

Mathematics

Suppose that insurance companies did a survey. They randomly surveyed 440 drivers and found that 320 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up. Part A

i. x =
ii. n =
iii. p' =

b. Define the Random Variables X and P', in words.
c. Which distribution should you use for this problem? Explain your choice.
d. Construct a 95% confidence interval for the population proportion who claim they always buckle up.
i. State the confidence interval.
ii. Sketch the graph.
iii. Calculate the error bound.
e. If this survey were done by telephone, list three difficulties the companies might have in obtaining random results.

Ответ:

manyah6189

07.02.2021

Mathematics

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I think they will match if they have a relationship so A. But, i also think it could be different it's like humans they aren't all the same. :)

Step-by-step explanation:

Those were my reasons and thats pretty much what you think or make it is what it is so best idea is to work it out. :)

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