Using the t-distribution, it is found that:
a. The <u>margin of error</u> is of 4.7 homes.
b. The 98% confidence interval for the population mean is (19.3, 28.7).
The information given in the text is:
- Sample mean of .
- Sample standard deviation of .
- Sample size of .
We are given the <u>standard deviation for the sample</u>, which is why the t-distribution is used to solve this question.
The confidence interval is:
The margin of error is:
Item a:
The critical value, using a t-distribution calculator, for a two-tailed <u>98% confidence interval</u>, with 23 - 1 = <u>22 df</u>, is t = 2.508.
Then, the <em>margin of error</em> is:
Item b:
The interval is:
The 98% confidence interval for the population mean is (19.3, 28.7).
A similar problem is given at brainly.com/question/15180581
Answer:
<em>A Correct Answer</em>
Step-by-step explanation:
Answer:-0.11111111111
Step-by-step explanation:
Answer:
The First one is an Acute angle 90 degrees
Step-by-step explanation <em>The second one is an Equitateral angle has three equal sides. The third one is an obtuse greater than 90. and the last one is an right angle. has one right side.</em>
What is a justification ? Exactly