alison surveyed a group of students at her school. she found that 155 students owned a cell phone, and 76 of those students owne
d a laptop as well. she also found that there were 35 students that do not own a cell phone, but own a laptop. seventeen students did not own either device. complete this two-way table to summarize the data.
1 answer:
You might be interested in
Answer with explanation:
A x% confidence interval interprets that a person can be x% confident thatthe true mean lies in it.
Here, Credit card companies is using the collection agency to justify the cost of , the agency must collect an average of at least $200 per customer.
i.e.
The 90% confidence interval on the mean collected amount was reported as ($190.25, $250.75) .
I recommend that we can be 90% sure that the true mean collected amount lies in ($190.25, $250.75).
Also, $200 lies in it such that it is more far from $250.75 than $190.25, that means there are large chances of having an average is at least $200 per customer.