Using the t-distribution, it is found that the 95% confidence interval for the mean number of people the houses were shown is (20.1, 27.9).
We have the <u>standard deviation for the sample</u>, hence the t-distribution is used to build the confidence interval. Important information are given by:
- Sample mean of
. - Sample standard deviation of
. - Sample size of

The confidence interval is:

In which t is the critical value for a <u>95% confidence interval with 23 - 1 = 22 df</u>, thus, looking at a calculator or at the t-table, it is found that t = 2.0739.
Then:


The 95% confidence interval for the mean number of people the houses were shown is (20.1, 27.9).
A similar problem is given at brainly.com/question/15180581
Answer:
idk what the answer is
Step-by-step explanation:
Answer:
I think it's 7- 2i over 3. hopefully that helps
Answer:
B for sure!
Step-by-step explanation:
It looks like this

. So the answer is <span>
A) 1.2 in. by 1.2 in.</span>