34x+8-71x=71x-49-71x
-37x+8=-49
-37x+8-8=-49-8
-37x=-57
-37x/-37=-57/-37
x=57/37
Answer:
Yes, there is significant evidence to support the claim that sample standard deviation is higher than that claimed by the manufacturer
Step-by-step explanation:
Sample standard deviation, s = 3.2
Population standard deviation, σ = 2
Defining the Null and alternative hypothesis :
H0 : σ = 2
H1 : σ > 2
The test statistic :
Use the Relation :.
[(n - 1)*s²] ÷ σ²
[(10 - 1) * 3.2²] ÷ 2²
(9 * 10.24) ÷ 4
92.16 ÷ 4
= 23.04
We obtain the Pvalue for the distribution :
Using the Pvalue from Chisquare distribution calculator :
Pvalue(Chisquare score, df)
df = n - 1 = 10 - 1 = 9
Pvalue(23.04, 9) = 0.006107
Decision :
If Pvalue is < α ; Reject H0 ; α = 0.05
0.006107 < 0.05 ; We reject H0
Answer:
1.5 and -1.5
Step-by-step explanation:
The coordinate of A is 0. It is given that AR = 3. AR represents the distance from point A to point R. Remember that distance is always positive. So, from here we have two possibilities.
- Point R is on Right side of A i.e. at coordinate 3
- Point R is on Left side of A i.e. at coordinate -3
In both of these cases AR which is the distance from A to R will be 3.
So, if R is on Right side of A, the midpoint of AR would be:
Or if R is on Left side of A, the midpoint of AR would be:
Thus, the possible coordinates of the midpoint of AR are 1.5 and -1.5
Look at the original graph, shift it 1 unit to the left, 2 units down, you'll have the new graph.
Answer:
8/25
Step-by-step explanation:
Brainliest pls
