Answer:
2,-4
-2,-3
_____
1
Step-by-step explanation:
That is how write the equation because you have to line them up by the higher x or y value
Answer:
1790.06204 = 1 × 1000 + 7 × 100 + 9 × 10 + 0.6204
18.5376= 1 × 10 + 8 + 0.5376
Solution :
a).
Given : Number of times, n = 25
Sigma, σ = 0.200 kg
Weight, μ = 13 kg
Therefore the hypothesis should be tested are :


b). When the value of 
Test statics :



= 45.5
P-value = 2 x P(Z > 45.5)
= 2 x 1 -P (Z < 45.5) = 0
Reject the null hypothesis if P value < α = 0.01 level of significance.
So reject the null hypothesis.
Therefore, we conclude that the true mean measured weight differs from 13 kg.