If x + y = x y = 5 then x ^2 y + X Y ^ 2 equals
1 answer:
You might be interested in
Answer:
There is no sufficient evidence to support the claim that the bags are underfilled
Step-by-step explanation:
We are given;
n = 27 bags
Sample mean;X = 402 gram
Population mean;μ = 404 gram
Variance = 676
We know that, standard deviation(σ) = √variance
Thus;
σ = √676
σ = 26
The hypotheses are;
Null hypothesis; H0: μ = 404
Alternative hypothesis; HA: μ < 404
Let's find the z-score from the formula;
z = (X - μ)/(√σ/n)
z = (402 - 404)/√(26/27)
z = -2.04
From the z-distribution table attached, we have a p-value of 0.02068
This is less than the significance value of 0.01 and thus we will reject the null hypothesis and conclude that there is no sufficient evidence to support the claim that the bags are underfilled
Answer:
<h2>NONE OF THEM</h2>Step-by-step explanation:
From the graph,
y and x intercepts are and approximately
respectively
for A, C and D :
x intercept the value of y=0, and y intercept x=0.
x and y intercepts are and approximately
respectively
for B:
x and y intercepts are and approximately
respectively
Therefore x and y intercepts for the lines and
they are not equal to the x and y intercepts of the given graph