Amanufacturer receives parts from two suppliers. an srs of 400 parts from supplier 1 finds 20 defective; an srs of 100 parts from supplier 2 finds 10 defective. let p1 and p2 be the proportion of all parts from suppliers 1 and 2, respectively, that are defective. is there evidence of a difference in the proportion of defective parts produced by the two suppliers? to make this determination, you test the hypotheses h0 : p1 = p2 and ha : p1 ≠ p2. the p-value of your test is

a) 0.1164.

b) 0.0301.

c) 0.0602.

Option C) 0.0602  

Step-by-step explanation:

We are given the following in the question:

Let p1 and p2 be the proportion of all parts from suppliers 1 and 2, respectively, that are defective.

First, we design the null and the alternate hypothesis

We use Two-tailed z test to perform this hypothesis.

Formula:

Putting all the values, we get,

Now, we calculate the p-value from the table at 0.05 significance level.

P-value = 0.0602

Thus, the correct answer is

Option C) 0.0602

b

step-by-step explanation:

ez

answer:

a=9

step-by-step explanation: lmk if you need a explanation