Section 7.4: Hypothesis Testing forProportions. 4. A flash drive manufacturer ha

Question

Section 7.4: Hypothesis Testing forProportions.

4. A flash drive manufacturer has set a standard on theirproduction process. When defects exceed 3%, the production processis unacceptable. A random sample of 300 drives is tested. Thedefective rate is 5.9%. Use a level of significance of = 0.01 to test to see if you have sufficient evidence to supportthe claim that the defective rate exceeds 3%. (Round phat to 3decimal places.)

1.    H0:

Ha :

2.    =

3.    Teststatistics:

4.    P-value orcritical z0 ort0.   

5.    RejectionRegion:  

6.   Decision:

7.   Interpretation:

Guidelines -- Hypothesis Testing Steps:

Explanation / Answer

1.    H0:p<=0.03

Ha :p>0.03

2.    =0.01

3.    Teststatistics:

4.    P-value orcritical z0 ort0.   

5.    RejectionRegion:  

6.   Decision:

7.   Interpretation:

So we conclude that the defective rateexceeds 3%.

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