Compute the 95% confidence interval for the percentage

Reference no: EM13177338

A clock company is concerned about errors in assembly of their custom made clocks. A random sample of 120 clocks from today's production yields nine clocks with assembly errors.

a. Compute the 95% confidence interval for the percentage of clocks with assembly errors in today's production.
b. Interpret this confidence interval.
c. How many clocks should be selected in order to be 95% confident of being within 2% of the population percentage of clocks with assembly errors in today's production?

Reference no: EM13177338

Questions Cloud

Discuss tax rates, distributions and operating losses : Discuss and consider tax rates, distributions, operating losses and A and B shareholder loans under each alternative and Discuss and analyze the cases of Moline Properties and Roubik (set forth in Bittker , Chapter 1.05(1)(b) and Chapter 1, foot..

How many grams of sodium from soy sauce are included : One-half serving of soy sauce contains 389 milligrams of sodium. How many grams of sodium from soy sauce are included in an egg-foo-young dish made from 4 serving of soy sauce? Round result to the nearest tenth of a gram.

Which affect the demand for any product : Looking at the chart below, suggest the kinds of variables that could be used to represent the following factors, which are believed to affect the demand for any product. Determinants of Demand Suggested Variables to

?nd the standard deviation of x : If for a certain normal random variable X, P (X 650) = 0.0227, ?nd the standard deviation of X.

Compute the 95% confidence interval for the percentage : A clock company is concerned about errors in assembly of their custom made clocks. A random sample of 120 clocks from today's production yields nine clocks with assembly errors.

What is the corporations taxable income : A corporation has income of $62,000 from operations and a long term capital loss of $5,000 and long term capital gain of $4,000. What is the corporation's taxable income?

Analyze events using the supply and demand model : During the late 1980' and early 1990's, economic reforms initiated by Soviet President Mikhail Gorbachev began to raise consumer incomes; but the Soviet government continued to impose price ceilings on basic goods like food, clothing and household..

State dna is replicated prior to cell division : Indicate whether the following outcomes of cell division are observed in mitosis only, meiosis only, or both mitosis and meiosis. DNA is replicated prior to cell division.

A single and long dna molecule containing genes : Match the following definition with the correct term. Answers can be used more than once. (centriole, centromere, chromosome, chromatid, kinetochore) 1) A single, long DNA molecule containing genes.

User Account

All Pages