Assume That the Population Distributions of Times (In Hours) of Two

question 136

Short Answer

Assume that the population distributions of times (in hours) of two different surgeries are normal with equal variances. Two random samples, drawn independently from the populations, showed the following statistics. Construct and interpret a 90% confidence interval for the true difference in mean amount of time of the two surgeries.
What is the 90% confidence interval? (CI)
CI = ______________ Enter (n1, n2)
Since this interval contains zero, the sample evidence ______________support that the two surgeries, on average, do not take significantly different amounts of time.

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Definitions:

Prices

The monetary value necessary to acquire a good, service, or asset.

Marginal Revenue

The rise in income generated by selling an extra unit of a product.

Cheese

A dairy product derived from milk and produced in a wide range of flavors and textures through the process of coagulation.

Marginal Revenue

The increased income from the sale of one more unit of a product or service.