TABLE 9-1 A Manufacturer Produces Light Bulbs That Have a Mean Life

question 109

Short Answer

TABLE 9-1
A manufacturer produces light bulbs that have a mean life of at least 500 hours when the production process is working properly. Based on past experience, the population standard deviation is 50 hours and the light bulb life is normally distributed. The operations manager stops the production process if there is evidence that the population mean light bulb life is below 500 hours.
-Referring to Table 9-1, if you select a sample of 100 light bulbs and are willing to have a level of significance of 0.05, the probability of the operations manager not stopping the process when the process is in fact working properly and is in fact below 500 hours is ________.

---

Definitions:

Prefix Dys-

A prefix in medical terminology denoting a difficulty, pain, or abnormality in the function of a specified body part or system.

Dysuria

The medical term for painful urination, which can be a symptom of various urinary tract conditions or infections.

Glomerular Filtration Rate

A test used to check how well the kidneys are filtering blood.

Creatinine Clearance

A measure of the kidney's ability to clear creatinine from the blood, an indicator of renal function.