Mathematics, 27.05.2021 19:20 baileyrw
A large home improvement store is considering expanding its selection of moving products, such as cardboard
boxes and packing tape. The store constructs a 90% confidence interval to estimate the proportion of all
customers who have moved houses at least once in the last five years. In the random sample of 620 customers,
201 (32.4%) replied that they had moved at least once in the last five years. The sample yielded the 90%
confidence interval (0.293, 0.355) for the proportion of all customers who have moved in the past five years. What
is the correct interpretation of this confidence interval?
O The store can be 90% confident that a proportion of 0.324 of all customers of this store have moved in the past
five years.
There is a 90% probability that between 29.3% and 35.5% of all customers of this store have moved in the past
five years.
O There is a 10% chance that less than 29.3% or more than 35.5% of all customers of this store have moved in the
past five years.
The store can be 90% confident that the interval from 0.293 to 0.355 captures the proportion of all customers of
this store who have moved in the past five years.
Answers: 1
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