Probability theory

[andriy_1111]

It is known that the plant produces 5% of defective products.
How many products need to be checked to have a probability of 0.954
deviation of relative frequency of defective products from probability
defects in absolute terms did not exceed 4%?
Possible answers: a) 184, b) 152, c) 193, d) 165.

 

[tkhunny]

That's a lovely problem statement. Please tell us that you at least have an idea what sort of distribution we're looking at. Then, give us your thoughts. Perhaps state the mean and standard deviation of the distribution?

 

[andriy_1111]

That's a lovely problem statement. Please tell us that you at least have an idea what sort of distribution we're looking at. Then, give us your thoughts. Perhaps state the mean and standard deviation of the distribution?

Please tell us that you at least have an idea what sort of distribution we're looking at.

Consistent independence test.
Bernoulli's formula.

Perhaps state the mean and standard deviation of the distribution?
this is the full condition of the problem

 

[tkhunny]

This is the full condition of the problem

This is the part that worries me. The problem statement did not TELL you the distribution or it's mean or it's standard deviation, therefore, you believe you cannot know it. You will have to do better than that.

Hint: One Test with two possible outcomes is a Bernoulli Trial.

Multiple Independent Bernoulli Trials leads to a ______________ Distribution.

Once we know the distribution, defined by the parameters [math]n = [/math] ___________ and [math]p = [/math] ___________, we can calculate the mean and standard deviation.

Since our sample is so large, at least 152, we can use the _________________ Approximation to the distribution suggested above.

Go!