Compute ninety nine percent confidence interval of true mean

Assignment Help Basic Statistics

Reference no: EM13153799

An automobile shop manager timed six employees and found that the average time it took then to change a water pump was 18 minutes. The standard deviation of the sample was 3 minutes. Find the 99% confidence interval of the true mean.

Reference no: EM13153799

Questions Cloud

How much heat is required to heat 410g of copper : How much heat is required to heat 410g of copper from 25degree C to 200degree C?

Share of the partnership losses : The partnership reports losses of $500,000 in 2009 and $450,000 in 2010. Pearl's share of the partnership's losses is $50,000 in 2009 and $45,000 in 2010. How much of the losses can Pearl deduct?

Determine mary taxable income : Mary, a single taxpayer with two dependent children, has the following items of income and expense during 2010:

What circumstances should photosynthesis take on the project : Photosynthesis, Inc. is considering a project that will result in initial after-tax cash savings of $2 million at the end of the first year, and these savings will grow at a rate of 6% per year indefinitely.

Compute ninety nine percent confidence interval of true mean : The average time it took then to change a water pump was 18 minutes. The standard deviation of the sample was 3 minutes. Find the 99% confidence interval of the true mean.

Total cash collection from receivables : The company's past records show collection of credit sales as follows: 30% in the month of sale and the balance in the following month. The total cash collection from receivables in March is expected to be

What is jensen''s cost of preferred stock : Jensen's Travel Agency has 8 percent preferred stock outstanding that is currently selling for $28 a share. The market rate of return is 14 percent and the firm's tax rate is 34 percent. What is Jensen's cost of preferred stock

What volume does the gas occupy at the height : A balloon filled with helium gas has a volume of 500 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm.

Consolidated balance sheet after acquisition : Based on the preceding information, what amount of total liabilities was reported in the consolidated balance sheet immediately after acquisition?

User Account

All Pages