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 one year ago
A simple random sample of 400 households is taken in a large city, and the number of cars in each sampled household is noted. The average number of cars in the sampled households is 1.8 and the SD is 1.3. Among the sampled households, 10% had no car.
An approximate 99% confidence interval for the percent of city households that have no car goes from _____________________% to ______________________%.
 one year ago
A simple random sample of 400 households is taken in a large city, and the number of cars in each sampled household is noted. The average number of cars in the sampled households is 1.8 and the SD is 1.3. Among the sampled households, 10% had no car. An approximate 99% confidence interval for the percent of city households that have no car goes from _____________________% to ______________________%.

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Social
 one year ago
Best ResponseYou've already chosen the best response.0you have the interval from 2.575 to +2.575

Social
 one year ago
Best ResponseYou've already chosen the best response.0(this is not the answer). in this interval you have the 99% of city households that have no car

Social
 one year ago
Best ResponseYou've already chosen the best response.010% have no car, so =40

asjara
 one year ago
Best ResponseYou've already chosen the best response.0I don't understand what you wrote... Let's see: if we go with 10% to the "SticiGui", we get 1.28, isn't it? But the problem here now is that we are considering percent intervals, not value intervals. So how can we calculate them? (%1,%2)

Social
 one year ago
Best ResponseYou've already chosen the best response.0@asjara i do not know. I am thinking about... nice approach. 10% is + 0.126 Isnt it?

heybhai
 one year ago
Best ResponseYou've already chosen the best response.01st part answer is 1.6934 to 1.9064.
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