Considering that we have the standard deviation for the sample, the t-distribution will be used, and the critical value is t = 2.6682.
<h3>When should the t-distribution and the z-distribution be used?</h3>
- If we have the standard deviation for the sample, the t-distribution should be used.
- If we have the standard deviation for the population, the z-distribution should be used.
In this problem, σ is not known, hence we get the standard deviation of the sample from the histogram and the t-distribution is used.
Using a t-distribution calculator, considering a <em>confidence level of 99%</em> and 56 - 1 = <em>55 df</em>, the critical value is t = 2.6682.
More can be learned about the t-distribution at brainly.com/question/16162795
Answer:
1/3 x 3/11 = 3/33 or 0.09, or 9 percent
Step-by-step explanation:
The answer is D hope this helped
Radius is 16, that’s all I know
Answer:
irudiwhiwhs swsw is d
Step-by-step explanation:
8349240 is your aswr 213
