I really don’t understand this question. can you explain this in the comment so i can answer your
Answer:
Null hypothesis is rejected. Standard deviation is > 8 miles per hour
Step-by-step explanation:
σ [Population standard deviation] = 8 , s [sample standard deviation] = s
n [no of items] = 8
H0 [Null] : σ = 8 ; H1 [Alternate - Right Tail] : σ > 8
χ2 = (n - 1) . s^2 / σ^2
= 49 x (10.5)^2 / 82 = 5402.25 / 64
χ2 = 84.410
df [degree of freedom] = n -1 = 50 - 1 = 49
P value (χ^2 49 > 84.410) = 0.00125
p = 0.0013
p < α ie 0.05
So, H0 is rejected
Hence we state that standard deviation is > 8 miles per hpur
Answer: 22 miles
Step-by-step explanation:
1/4 times 4 = 1 gallon
if Rob can travel 5 and 1/2 miles on 1/4, then to find how far he can travel on 1 gallon we multiply 51/2 by 4
5 1/2 x 4 = 22
The volume of the original cube = 18^3 = 5,832 cubic cm
5,832 / 8 cubes = 729 cubic cm.
Side length = Cubicroot729 = 9
The side length is 9 cm
Answer:
n² + 3
this is the expression
Step-by-step explanation:
