The value of test statistic is 5.45
Data;
- n1 = 25
- n2 = 30
- x1 = 6.2
- x2 = 3.8
- s1 = 2
- s2 = 1
<h3>Test Statistic</h3>
The formula to calculate the test statistic is given as

Let's substitute the values and solve for t

The value of test statistic is 5.45
Learn more on test statistic here;
brainly.com/question/15980493
Writing the equation that governs this situation:
-3C - (2.5C/hr)x = -18C
Simplifying, -3 - 2.5x = -18, or 3 + 2.5x = 18
Combining like terms: 2.5x = 18-3 = 15
Then x = 15/2.5 = 6. The temp. will reach -18C after 6 hours.
Answer:
5128. Your wlc :)
Step-by-step explanation:
K=-27 i got this from and app called mathpapa they give u the answer and show you step by step what to do
Answer:
A. (3,-4)
Step-by-step explanation:
if we reflect on the x axis, the y changes
if we reflect on the y axis, the x changes