Answer:
Step-by-step explanation:
Hello!
You need to construct a 95% CI for the population mean of the length of engineering conferences.
The variable has a normal distribution.
The information given is:
n= 84
x[bar]= 3.94
δ= 1.28
The formula for the Confidence interval is:
x[bar]±
*(δ/n)
Lower bound(Lb): 3.698
Upper bound(Ub): 4.182
Error bound: (Ub - Lb)/2 = (4.182-3.698)/2 = 0.242
I hope it helps!
Answer:
Step-by-step explanation:
Jmeu eimejrimr
You have everything right. If you look, it says Y is distance from home, and X is the time they spent driving.
I took the test and made a 100%
0.813 is your answer because 7 is higher than 5 which means you have to round it up and not down