Answer: (751.05, 766.95)
Step-by-step explanation:
We know that the confidence interval for population mean is given by :-
,
where =population standard deviation.
= sample mean
n= sample size
z* = Two-tailed critical z-value.
Given :
n= 42
We know that from z-table , the two-tailed critical value for 99% confidence interval : z* =2.576
Now, the 99% confidence interval around the true population mean viscosity :-
∴ A 99% confidence interval around the true population mean viscosity : (751.05, 766.95)
Answer:
Step-by-step explanation:
The slope of a line between two points can be calculated by dividing the difference of y values by the difference of x values
in this case
Answer:
The radius is 5.00001
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1) x + 8 = -52
Subtract both sides by 8:
x = -60
2) y - 17 = -37
Add 17 to both sides:
y = -20
3) -12 + k = 18
Add 12 to both sides:
k = 30
4) 5m = -20
Divide both sides by 5:
m = -4
5) x/9 = 3
Multiply both sides by 9:
x = 27
6) 4z/5 = 16
Multiply both sides by 5/4:
z = 20