Answer:
(364.595 ; 391.405)
Step-by-step explanation:
Given the sample data:
406, 385, 389, 383, 352, 379, 388, 343, 368, 387
Using calculator :
Sample mean, xbar = 378
Standard deviation, s = 18.74
Confidence interval :
Xbar ± Margin of error
Margin of Error = Tcritical * s/√n
TCritical at df = 24 ; 0.05 = 2.262
Margin of Error = 2.262 * 18.74/√10 = 13.405
Lower boundary = (378 - 13.405) = 364.595
Upper boundary = (378 + 13.405) = 391.405
(364.595 ; 391.405)
Answer:
x = -1
Step-by-step explanation:
x-7/4=-2
x-7=-8
x=-1
For the 3rd sum
Subtract
(10^5 - 10^2) = 10^3
And for the 4th sum
a) 2(2b+g)
b) b = - 2g/4
c). g = - 4b/2
The space shuttle makes an ORBIT
13 miles or you could say 13.3 miles
