Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval is (29.6, 44.4).
<h3>What is a t-distribution confidence interval?</h3>
The confidence interval is:
In which:
- is the sample mean.
- s is the standard deviation for the sample.
The critical value, using a t-distribution calculator, for a <u>two-tailed 95% confidence interval</u>, with 25 - 1 = <em>24 df</em>, is t = 2.0639.
The other parameters are given by:
.
Hence, the bounds of the interval are given as follows:
The 95% confidence interval is (29.6, 44.4).
More can be learned about the t-distribution at brainly.com/question/16162795
Answer:
2.06
Step-by-step explanation:
the answer is the sum of all of the products of posts made by the P(X) under it.
also... I got it right on my quiz
Answer:
12 inches
Step-by-step explanation:
What information is useful?
Each brick is: 1 1/2 inches long.
There are 8 bricks used.
Let's multiply 1 1/2 x 8 = 12 inches.
You can convert into other metrics but depending on your question it is in inches.
Answer: x = 13; y = 13√2
because this is a right triangle, we have:
tan 45° = x/13
⇔ x/13 = 1
=> x = 13
we also have:
cos 45° = 13/y
⇔ 13/y = 1/√2
⇔ y = 13√2
Step-by-step explanation: