Answer: \left(5t^4-10t^2+6\right)\cdot \:l\cdot \:e^2\cdot \:i^2\cdot \:n\cdot \:t\cdot \left(t+2\right)\cdot \:s^2\cdot \:u
~Maybe so I'm not sure!~
I'm Vietnamese, I don't think I'll be right
Step-by-step explanation:
w×3+1
3w+1=4
3w=4-1
3w=3
w=1
Answer:
The 90% confidence interval for the population standard deviation waiting time for an oil change is (3.9, 6.3).
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for the population standard deviation is:

The information provided is:
<em>n</em> = 26
<em>s</em> = 4.8 minutes
Confidence level = 90%
Compute the critical values of Chi-square as follows:


*Use a Chi-square table.
Compute the 90% confidence interval for the population standard deviation waiting time for an oil change as follows:


Thus, the 90% confidence interval for the population standard deviation waiting time for an oil change is (3.9, 6.3).