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Mathematics, 26.06.2020 23:01 shouyuanroh3685
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Question 6
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You randomly select 36 cars that were sold at a car dealership and determine the number of days each car sat on the dealership's lot before it was sold. The cars in your sample sat on the lot an average of 9.75
days before being sold, with a standard deviation of 2 39. You calculate the 99% confidence interval as
[8.66.10.84)
Does this support the dealership's claim that on average their cars are on their lot 10 days before being sold? Why or why not?
No, it doesn't support the dealership's claim because 10 is not in the confidence interval
No, it doesn't support the dealership's claim because 10 is in the confidence interval
Yes it supports the dealership's claim because 10 is not in the confidence interval
Yes. It supports the dealership's claim because 10 is in the confidence interval
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