Answer:
the answer should be -3.66667
Step-by-step explanation:
<h2>
Answer with explanation:</h2>
Let be the average weight of chocolate chips in each bag.
As per given , we have
Since is left-tailed , so we perform a left-tailed test.
Also, the population standard deviation is known .
So we use z-test.
Test statistic :
Substitute given value ,
Significance level = 0.05
Decision rule : Reject when p-value < 0.05.
By z-table , P- value for left-tailed test = P(z<-1.96)= 1- P(z<1.96)
[∵ P(Z<-z)=1-P(Z<z)]
= 1- 0.9750
=0.025
Since , P-value(0.025) < 0.05 , so we reject the null hypothesis.
We support the claim that the machine is underfilling the bags at 0.05 significance level .
<h3>2
Answers:</h3>
A)
D)
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Explanation:
Choices B and C are rational because we can simplify them to form a fraction of integers.
Any rational number is of the form P/Q where P,Q are integers and Q is nonzero.
So we can rule out choices B and C.
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Choice A on the other hand cannot be written as a fraction of integers. The 5 isn't a perfect square, which makes irrational.
The same can be said about which is roughly equal to 3.14; the decimal digits go on forever without a known pattern.
Choice A and choice D are the two answers.
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If we know the pattern of the decimal digits, then we can turn the decimal number into a fraction of integers
The number -0.777, where the 7s go on forever, converts to the fraction -7/9
That means we rule out choice E.
Answer:
-6
Step-by-step explanation:
Answer:
The two equations of each line is
y = x + 10 and y = -x + 5
I am unable to idenfity your option choices due to formating
Step-by-step explanation:
I've attached my work
Hope it helps, let me know if you have any questions/concerns !
Have a nice rest of your day :)