Review problem on telephone service

Reference no: EM131813477

Question: A survey of 21,250 households concerning telephone service gave the results shown in the table.

a. Give a point estimate for the proportion of all households in which there is a cell phone but no landline.

b. Assuming the sample is sufficiently large, construct a 99.9% confidence interval for the proportion of all households in which there is a cell phone but no landline.

c. Give a point estimate for the proportion of all households in which there is no telephone service of either kind.

d. Assuming the sample is sufficiently large, construct a 99.9% confidence interval for the proportion of all all households in which there is no telephone service of either kind.

Reference no: EM131813477

Questions Cloud

Estimate the expected rate of return on stocks : What are the advantages and disadvantages in using these data to help estimate the expected rate of return on US stocks over the coming year.

Confidence interval for proportion of all cattle in estrus : Assuming that the sample is sufficiently large, construct a 90% confidence interval for the proportion of all cattle in estrus who are detected by this method.

Determine the unit and dollar amounts of raw materials : Shepler Boot Company makes specialty boots for the rodeo circuit. Determine the unit and dollar amounts of raw materials inventory in heels

Baznik has six participating employees : Baznik has six participating employees who are expected to receive the retroactive benefits

Review problem on telephone service : Assuming the sample is sufficiently large, construct a 99.9% confidence interval for the proportion of all households in which there is a cell phone.

Explain what mr yates did and why : Explain what Mr. Yates did and why. Describe the terms used in the statute at issue and the history of the statute.

Find the proportion of all self described vegetarians : In a random sample of 900 adults, 42 defined themselves as vegetarians. Of these 42, 29 were women. a. Give a point estimate of the proportion.

Explain what each of the calculated variances : Explain what each of the calculated variances imply about the firms operations

How many hours will be required to satisfy the demand : A total of 600 hours are available in the Miami facility. How many hours will be required to satisfy the demand for the Ash wooden mallet

User Account

All Pages