Explain two types of batteries are having same mean life

Assignment Help Basic Statistics

Reference no: EM13136677

Two types of batteries x and y tested for their length life and the following result abtained: battery x :sample size 10,mean hour 1000,variance hour 100 and battery y: sample size 12,mean hour 1020,variance hour 121. can you conclude that two types of batteries are having the same mean life?

Reference no: EM13136677

Questions Cloud

Explain three commonly used performance measures : Key concepts for include the delegation of decision making and measuring performance of investment centers. Most large organizations are decentralized into divisions and other sizable subunits or investment centers. Explain three commonly used per..

Calculate the breakeven point in units : Jack and Jill Company produces two products, X and Y. X sells for $10/unit and Y sells for $20/unit. The products have a variable cost of $9 for X and $14 for Y. Last year the company sold 10,000 units of X and 40,000 units of Y. Fixed costs are a..

Explain how depreciation provides a means of expensing : A newly hired manager of a engineering company,does not understand how the cost of the firm's equipment is expensed. In memo format, explain how depreciation provides a means of expensing the cost of equipment.

How would you react to jan suggestion : Jerry's assistant Jan Kramer, suggests that they can still meet their deadline if they use "direct conversion" rather than "parallel conversion". Assuming that you are CIO of the company, how would you react to Jan's suggestion? Discuss.

Explain two types of batteries are having same mean life : Variance hour 100 and battery y: sample size 12,mean hour 1020,variance hour 121. can you conclude that two types of batteries are having the same mean life?

Calculate company price-earnings ratio : The year-end market price per common share was $12 and there were 425,000 weighted-average shares of common stock outstanding. Calculate company's price-earnings ratio.

What is the value of q (heat) : Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more complicated, but this is a reasonable first approximation.)

Estimate the percentage who weigh more in pounds : Estimate the percentage who weigh more than 180 pounds? Assume that we want 96% confidence that the error is no more than 2 percentage points.

On consolidated net income : Dennis Company is an 80%-owned subsidiary of Kay Industries. Dennis Company issued 10-year, 8% bonds in the amount of $1,000,000 on January 1, 20X1. On the distribution of income to the controlling and noncontrolling interests.

User Account

All Pages