Separating because you have to do 25-14 for your answer. 11 cows are in the barn.
I'm going to take a guess regarding what you meant to type in:
<span>3x-9 X +6x+5
E(x)= ------- × -------------
2 2
X -9 X +5x+6
3(x+3) 6x+5
becomes E(x) = ----------- * ------------
x-9 5x+6
This cannot be reduced.
Try again to share this problem. Thank you.
</span>
Answer:
There is not a convincing statistical evidence, at the significance level of a = 0.05, that the manager's belief is correct.
As the null hypothesis maybe false accepting it makes a type II error.
Step-by-step explanation:
Let the null and alternate hypotheses be
H0: p ≤ 0.4 vs Ha : p>0.4
q= 1-p= 1-0.4= 0.6
The significance level alpha is 0.05
The critical region for one tailed test is Z> ± 1.645
The sample proportion is p^= x/n= 38/90=0.42222
Using the z statistic
z= p^- p/ √pq
z= 0.422-0.4/ √0.4*0.6
z= 0.04536
Since the calculated value of z= 0.04536 does not lie in the critical region Z> ± 1.645 we fail to reject null hypothesis.
There is not sufficient evidence to support the manager's claim.
Type I error is when we reject the true null hypothesis .
Type II error is when we accept the false null hypothesis .
As the null hypothesis maybe false accepting it makes a type II error.
Answer:
100 - 35 = 65 %
Step-by-step explanation:
you need to do math by 100 % and 35% woth a minus and it will become 65
The length of the line segment using the percentage are as follows:
25% length = 1 cm
50% length = 2cm
100% length = 4 cm
75% length = 3 cm
<h3>How to find length with the percentage?</h3>
The line segment 8 cm is 200% . This means it is double of 100%.
Therefore the length can be calculated using the percentage as follows;
100% length = 8 / 2 = 4 cm
Hence,
75% length = 75 / 100 × 4 = 3 cm
Hence,
25% length = 25 / 100 × 4 = 1 cm
50% length = 50 / 100 × 4 = 2cm
learn more on percentage here: brainly.com/question/13150107
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