Confidence interval for the proportion defective

Reference no: EM1390124

Schadek Silkscreen Printing Inc. purchases plastic cups on which to print logos for sporting events, proms, birthdays, and other special occasions. Zack Schadek, the owner, received a large shipment this morning. To ensure the quality of the shipment, he selected a random sample of 300 cups. He found 15 to be defective. Thus, the estimated proportion defective in the population is .05.

a) What are the endpoints of a 95 percent confidence interval for the proportion defective. (Round your answers to 3 decimal places).

Reference no: EM1390124

Questions Cloud

Mean amount of time corporation executives watch television : A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 20 hours, with a standard deviation of 5.5 hours

Contingency table-chi square test : Four brands of light bulbs are being considered for use in the final assembly area of the Saturn plant in Spring Hill, Tennessee. The director of purchasing asked for samples of 100 from each manufacturer.

Macrophage receptor proteins : Determine what binds to macrophage receptor proteins and what macrophage signaling cascade(s) convey information received in this way to the nucleus?

Korner hardware manager emerson jones is interested : Korner Hardware manager Emerson Jones is interested in determining how many nativity scenes to order for the 12-day holiday season. Past experience indicates that demand for these nativity scenes averages nine per day during this 12-day period

Confidence interval for the proportion defective : What are the endpoints of a 95 percent confidence interval for the proportion defective. (Round your answers to 3 decimal places).

Change in heart rate during deep inhalation : Discuss how does the change in heart rate during deep inhalation compare to the change in heart rate during normal inhalation?

How a contingency table can be useful : Provide one example in the accounting department that you can apply a contingency table to. Briefly explain how a contingency table can be useful.

Requested a meeting with you to explore how you can help : You are an OD consultant for the Working Better Group. The President of a firm, BARTH Inc., requested a meeting with you to explore how you can help him

Estimating the mean number of eggs : The owner of Britten's Egg Farm wants to estimate the mean number of eggs laid per chicken. A sample of 20 chickens shows they laid an average of 22 eggs per month with a standard deviation of 2.03 eggs per month.

User Account

All Pages