Answer:
The correct answer is 4 (choice letter C)
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
note that +(- ) is equivalent to -
g(x) + (- g(x)) = g(x) - g(x) = 0
Answer:6/5<x<.10/3
Step-by-step explanation:
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:
x = -1 /2= -0.5 y = 15 /10= 1.5