A Manufacturer of Power Tools Claims That the Mean Amount

question 63

Short Answer

A manufacturer of power tools claims that the mean amount of time required to assemble their top-of-the-line table saw is 80 minutes with a standard deviation of 40 minutes.Suppose a random sample of 64 purchasers of this table saw is taken.The standard deviation of the sampling distribution of the sample mean is _____ minutes.

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Definitions:

Serious Injury

An injury that poses a substantial risk of death, causes extreme physical pain, or leads to significant and lasting bodily harm.

Death

The cessation of all biological functions that sustain a living organism, marking the end of its life.

ERISA

The Employee Retirement Income Security Act (ERISA) is a federal law that sets minimum standards for most voluntarily established retirement and health plans in private industry to provide protection for individuals in these plans.

Employee Retirement Income Security Act

A federal law that sets minimum standards for most voluntarily established retirement and health plans in private industry to provide protection for individuals in these plans.