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At a Large Automobile Factory,four Different Machines Are Used to Produce

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At a large automobile factory,four different machines are used to produce disc brakes.To make sure that the disc brakes are all being produced with comparable diameters,daily samples of 16 disc brakes are taken from the production lines of each of the four machines and their diameters measured.The deviation from the goal diameter of 322 micrometers is measured to the nearest micrometer.Assume that the distribution of these deviations is approximately Normal with a common standard deviation.Does it appear that disc brakes made on the four machines are made with equal mean diameters? SPSS output is included below. At a large automobile factory,four different machines are used to produce disc brakes.To make sure that the disc brakes are all being produced with comparable diameters,daily samples of 16 disc brakes are taken from the production lines of each of the four machines and their diameters measured.The deviation from the goal diameter of 322 micrometers is measured to the nearest micrometer.Assume that the distribution of these deviations is approximately Normal with a common standard deviation.Does it appear that disc brakes made on the four machines are made with equal mean diameters? SPSS output is included below.   At the 5% significance level,do we reject the null hypothesis of equality of the four population means? A) Yes B) No C) This cannot be determined from the information given. At the 5% significance level,do we reject the null hypothesis of equality of the four population means?


Definitions:

External Financing Needed

The additional funds a company requires from external sources to finance its planned activities or growth when internal cash flows are insufficient.

Profit Margin

A measure of profitability calculated as net income divided by revenues, expressed as a percentage.

Capital Intensity Ratio

A metric that measures the amount of assets required to generate one dollar of revenue; the higher the ratio, the more capital-intensive the business.

Dividend Payout Ratio

The fraction of net earnings a firm pays to its shareholders as dividends, expressed as a percentage of the company’s total net income.

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