If you subtract 13- -19, you get 32 degrees
Answer:
X= -0.1290 (bar line on top of the 90)
Hope this helps!
Step-by-step explanation:
D the answer for this problem okay
Answer:
Test statistic Z = 2.1097
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that size of the sample 'n' = 160
Given that mean of the Population(μ) = 5.3pounds/square inch
The Standard deviation of the population(σ) = 0.6
Mean of the sample(x⁻) = 5.4
Level of significance =0.1
<u><em>Step(ii):-</em></u>
Test statistic


Z = 2.1097
<u><em>Final answer</em></u>:-
Test statistic Z = 2.1097
Here's the equation for one year:
0.0129(680) + 680
But because it is 3 years:
3(0.0129(680)) + 680
0.0387(680) + 680
We can make it simpler:
1.0387(680)
Multiply:
706.316
We can round up:
She will have $706.32, and earn $26.32